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Callback Malware Campaign Imitates CrowdStrike and Other Big Cybersecurity Organizations

About the Attack

Earlier this month, CrowdStrike Intelligence found a callback phishing campaign copying big cybersecurity companies, including CrowdStrike. The phishing emails say that the receiver's (e-mail) company has been compromised and that the victim should contact the given phone number. The campaign incorporates similar social-engineering techniques that were used in the recent callback campaigns like WIZARD SPIDER'S 2021 Bazaar all campaign. 

The campaign is likely to include common genuine remote administration tools (RATs) for access in initial stage, off the shelf penetration testing tools for lateral movement, and execution of ransomware or extorting data. The callback campaign incorporates emails that look like it originates from big security companies, the message says that the security company found a potential issue in the receiver's network. As we have noticed in the earlier campaigns, the threat actor gives the recipient a phone number to call. 

In the past, callback campaign operators have tried to convince victims to install commercial RAT software to get an early foothold on the network. "For example, CrowdStrike Intelligence identified a similar callback campaign in March 2022 in which threat actors installed AteraRMM followed by Cobalt Strike to assist with lateral movement and deploy additional malware," says CrowdStrike. 

Current Situation 

Currently, CrowdStrike intelligence can't confirm the version in use, the callback operators will most probably use ransomware to monetize their operations. "This assessment is made with moderate confidence, as 2021 BazarCall campaigns would eventually lead to Conti ransomware — though this ransomware-as-a-service (RaaS) recently ceased operations. This is the first identified callback campaign impersonating cybersecurity entities and has higher potential success given the urgent nature of cyber breaches," says CrowdStrike.

SLTT Organizations Targeted by Jupyter Malware


The Multi-State Information Sharing and Analysis Center (MS-ISAC) Cyber Threat Intelligence Team (CTI) have uncovered Jupyter, a highly evasive and adaptive .NET infostealer, targeting state, local, tribal, and territorial (SLTT) organizations. 

To exploit SLTT entities, malicious actors have installed Jupyter widely, leveraging SEO-poisoning to design watering hole sites. Jupyter, also known as SolarMarker installs a multi-stage process, leveraging PowerShell and legitimate tools, such as Slim PDF Reader, to drop secondary payloads to fingerprint victim information, including computer name, OS version, architecture, permissions, and the user identifier. 

According to MS-ISAC, Jupyter targeting SLTTs is a part of a broader opportunistic effort, since the malware is impacting a wide range of sectors, including finance, healthcare, and education. Following a surge in activity during the fall, SLTT-Jupyter infections subsided with no incidents in December and a small resurgence through this past month.

The targeted organizations became aware of infections when their endpoint detection and response services (EDR) warned of unauthorized PowerShell commands attempting to establish links with command and control (C2) traffic. 

The researchers at MS-ISAC continue to investigate why malware authors are exfiltrating victims' private details. Additionally, researchers have noticed that Jupyter operators are altering their techniques, tactics, and procedures (TTPs), causing variation in intrusion details across infections. 

Despite the irregularity in Jupyter TTPs, multiple features are common among public-sourced and MS-ISAC-observed breaches. Prior to infection, the Jupyter operators inject over 2,000 keywords to push malicious Google and WordPress sites up search engine rankings, using a technique known as SEO-poisoning, thereby increasing the likelihood that an unsuspecting user will visit the page. 

Upon examining an SLTT Jupyter incident, researchers noticed that the initial infection occurred after an end-user attempted to install a malicious file embedded with an executable of a compromised website form.

The GootLoader Hackers are After Law Firms and Accounting Firms


GootLoader is a piece of initial access malware that allows its operators to install a variety of other malware families, including ransomware, on affected devices. It was first discovered in December 2020. The GootLoader hacking organization has been primarily targeting personnel at law and accounting firms in recent weeks, with the most recent attack occurring on January 6. So far, eSentire claims to have intercepted three such assaults. Potential victims are directed to hacked genuine websites that include hundreds of pages of business-related content, including free document samples for download, but they are instead infected with GootLoader. 

GootLoader is distributed using Drive-By-Download programmes, which are driven by SEO, specifically through Google. The hackers are enticing business professionals to authentic but compromised websites that they have packed with hundreds of pages of content, including multiple connections to business agreements, including legal and financial agreements, in these recent attacks.
The content claims to provide free downloads of these documents. eSentire's Threat Response Unit (TRU) discovered that the GootLoader hackers set up over 100,000 malicious webpages marketing various forms of commercial deals during an intensive GootLoader campaign that began last December. 

How are the GootLoader threat actors able to infiltrate reputable websites with hundreds of pages of malicious content? 

Tragically, it is just too simple. Hundreds of legitimate websites employing WordPress as the content management system have been detected by the GootLoader gang. WordPress, like many other content management systems, has several vulnerabilities, which hackers may simply exploit to load websites with as many harmful pages as all without the knowledge of the website owner. These websites, according to the TRU team, encompass a wide spectrum of industries, including hotel, high-end retail, education, healthcare, music, and visual arts. 

"The abundance of content that threat actors have pushed onto the web, when professional looks for a sample business agreement on Google, the hackers' malicious web pages appear in the top Google searches," said Keegan Keplinger, TRU's research and reporting lead. 

Three law businesses and an accounting firm were targeted by the cybersecurity services provider, which said it intercepted and demolished the attacks and the victims' identities have not been revealed. Organizations should implement a vetting process for business agreement samples, train staff to open documents only from reputable sources, and confirm that the content downloaded matches the content intended for download.

Online Support Agents Being Targeted Through Live Chat Platforms


Phishing scammers are pretending to be customers contact live-chat assistance agents with fake issues, making them open infected files, says incident response expert who found a surge in incidents using this trick since the start of this year. This scam is similar to another phishing campaign example which involves leveraging communication channels beyond the outside the emails to target potential victims out of the blue. The technique works off because website operators using chat features do not always check the files for malware while uploading. 

The hackers behind this rising trend are part of a ransomware group and maybe using automated scripts to target 'contact us' or other chat forums on the web which they can exploit, says Devon Ackerman, managing director and head of incident response for North America with Kroll’s Cyber Risk practice. He said "From a coding standpoint, I can build logic that will scan for [these chat forms] across any number of websites,” said Ackerman, placing himself in the shoes of an attacker.

After finding the form itself, “the second thing I’m looking for is… an interactable or selectable box [in the form field] that allows me to do a file upload. I can even anonymize myself through a virtual hosting server for maybe five, 10 bucks a month, and just run my script 24 hours a day and let it scan or crawl websites non-stop like a search engine spider or bot would." 

The attackers then find a target website which are identified by the 'spiders or the bots,' and build a communication platform suited to the particular company they're trying to exploit. This stage requires some human effort, because it is quite complex to automate as there are more variables. Every platform is a bit different from the other and every chat session is distinct too. Therefore, it requires more customisation, which means that we won't be able to see a large scale use of such techniques. But, this makes the scam look more authentic and genuine, as well as effective. 

SC Magazine reports, "an example might be a fake customer pretending to send a picture of a damaged vehicle to an auto insurance representative, or a phony business owner contacting a website with supposed proof of a copyright violation that never actually happened, he told SC Media. When the adversary sends over the malicious file, it may arrive in a password-protected zip format because antivirus software may not be able to detect the malware in compressed files, the blog post explains. The documents within the zip file contain malicious macros, which if enabled infect the customer support agent’s machine with malware."

Smishing Campaign: Roaming Mantis Attacks OS Android Systems With Malware

A smishing campaign which goes by the name Roaming Mantis is imitating a logistics firm to hack SMS messages and contact list of Android users from Asia since 2018. Last year, Roaming Mantis advanced its campaign impact by sending phishing URL messages and dynamic DNS services that attacked targets with duplicate Chrome extension "MoqHao." From the start of 2021, Mcafee Mobile Research Team has confirmed that the group is attacking users from Japan with the latest malware named SmsSpy. 

The corrupted code infects Android users that use either one of the two versions that depend upon variants of operating systems used by attacked systems. The phishing technique incorporated here shares similarities with earlier campaigns, still, the Roaming Mantis URL has the title "post" in composition. A different phishing message impersonates to be a Bitcoin handler and then takes the target to a malicious site (phishing) where the victim is requested to allow an unauthorized login attempt. 

McAfee reports, "During our investigation, we observed the phishing website hxxps://bitfiye[.]com redirect to hxxps://post.hygvv[.]com. The redirected URL contains the word “post” as well and follows the same format as the first screenshot. In this way, the actors behind the attack attempt to expand the variation of the SMS phishing campaign by redirecting from a domain that resembles a target company and service." Different malware, as a characteristic of the Malware distribution program, is sent which depends upon the Android OS variant that gained login to the phishing site. In Android OS 10 and later variants, malicious Google Play applications will get downloaded. In Android OS 9 and earlier variants, malicious Chrome applications will get downloaded. 

Because the infected code needs to be updated with each Android OS update, the malware actor targets more systems by spreading the malware that finds OS, instead of just trying to gain a small set with a single malware type. "The main purpose of this malware is to steal phone numbers and SMS messages from infected devices. After it runs, the malware pretends to be a Chrome or Google Play app that then requests the default messaging application to read the victim’s contacts and SMS messages," said McAfee.

Everthing You Need to Know About Ongoing TrickBot Attacks, US Agencies Warn


The Cybersecurity and Infrastructure Security Agency (CISA) in unison with the Federal Bureau of Investigation (FBI) published an advisory on Wednesday to warn organizations of ongoing TrickBot attacks despite in October multiple security firms dismantled their C2 infrastructure in a joint operation.

In their joint advisory, two agencies disclosed that a sophisticated group of cybercrime actors is leveraging a traffic infringement phishing scheme to lure victims into installing the Trickbot malware.

TrickBot was initially observed in 2016, it is believed to be designed by the threat actors behind the Dyre Trojan. TrickBot has become one of the most prevalent families out there, entrapping machines into a botnet that was being offered under a malware-as-a-service model to both nation-states and cybercrime groups.

“The Cybersecurity and Infrastructure Security Agency (CISA) and Federal Bureau of Investigation (FBI) have observed continued targeting through spear phishing campaigns using TrickBot malware in North America. A sophisticated group of cybercrime actors is luring victims, via phishing emails, with a traffic infringement phishing scheme to download TrickBot,” the joint advisory reads.

In October 2020, Microsoft revealed that it had disrupted the infrastructure behind TrickBot, taking most of it down. However, the malware survived the takedown attempt and came back stronger, with several new updates that protected against similar attempts. The recent attacks come as a confirmation to the same, that TrickBot’s operators were able to restore their malicious operations. 

“CISA and FBI are aware of recent attacks that use phishing emails, claiming to contain proof of a traffic violation to steal sensitive information. The phishing emails contain links that redirect to a website hosted on a compromised server that prompts the victim to click on photo proof of their traffic violation. In clicking the photo, the victim unknowingly downloads a malicious JavaScript file that, when opened, automatically communicates with the malicious actor’s command and control (C2) server to download Trickbot to the victim’s system,” the advisory further stated. 

Kaspersky detected new ransomware attack on Russian companies

Kaspersky Lab has recorded a series of targeted attacks targeting Russian financial and transport companies. Hackers used a previously unknown ransomware virus

According to a statement from Kaspersky Lab, since December 2020, ten Russian financial and transport companies have been subjected to hacker attacks using the previously unknown Quoter ransomware. Experts believe that the Russian-speaking group RTM is engaged in this.

The hackers sent out phishing emails, choosing topics that they calculated should force the recipient to open the message, for example, "Request for refund", "Copies of documents from the last month" and so on. As soon as the recipient clicked on the link or opened the attachment, the RTM Trojan was downloaded to their device.

Then the attackers tried to transfer money through accounting programs by replacing the details in payment orders or manually using remote access tools. If they failed, they used Quoter, which encrypted the data using the AES cryptographic algorithm and left contacts for communication with hackers. If the recipient did not respond, they threatened to make the stolen personal data publicly available and attached evidence, and demanded about $1 million as a ransom.

Sergey Golovanov, a leading expert at Kaspersky Lab, warned that the attacks pose a serious threat to companies, as hackers use several tools at once: a phishing email with a banking Trojan and an encryption program.

"Among the features of this campaign is that the Russian-speaking RTM attackers changed the tools used for the first time, moreover, now they are attacking Russian companies," said Mr. Golovanov, noting that usually encryption programs are used in attacks on foreign organizations.

Group-IB also warned about hacker attacks from RTM. According to the company, from September to December 2018, they sent more than 11 thousand malicious emails to financial institutions from addresses faked for government agencies. The emails contained a malicious attachment. They had fake PDF icons, and after running the file extracted from the archive, the computer was infected. On average, one successful theft of this type brought the attackers about 1.1 million rubles ($15,000).

Factories have become a major target for malware attacks

In the third quarter, the industry was attacked by various hacker groups - including RTM and TinyScouts, as well as ransomware operators. For example, according to Positive Technologies, the operators of the Maze ransomware program conducted a successful attack on Hoa Sen Group, the largest manufacturer of steel sheets in Vietnam. During the attack, personal data of employees, internal correspondence and other confidential information were stolen.

"This year, the vast majority of criminal groups switched to working with encryption programs since attackers realized that they can earn no less than in the case of a successful attack on a Bank, and technical execution is much easier," explained Anastasiya Tikhonova, head of APT Research at Group-IB.

According to her, more groups and partner programs have joined the "big game hunt”. 

"The size of the ransom has also increased significantly: cryptolocker operators often ask for several million dollars, and sometimes even several tens of millions. For example, the OldGremlin group, consisting of Russian-speaking hackers, actively attacks exclusively Russian companies: banks, industrial enterprises, medical organizations and software developers," explained Tikhonova.

The expert believes that one of the weakest links in the information security chain is still a person. "There are examples when an operator of a large industrial enterprise got bored, wanted to listen to music, and plugged a 3G modem directly into the USB port of the SCADA control and monitoring system.. And how many "trusted laptops” were there that employees brought from a business trip", concluded Tikhonova.

The expert believes that the danger of using Internet of things devices (IoT) is that it is problematic for advanced engineers to determine the fact of compromise. Target systems are assembled from a fairly large number of devices, and it is almost impossible to monitor and respond to possible security events and threats without additional solutions and human resources.

ESET has revealed a new series of Lazarus attacks

Experts of the antivirus company ESET have discovered a series of attacks, behind which is one of the most famous North Korean groups, Lazarus. The hackers targeted users of government and banking websites in South Korea. The cybercriminals used an unusual mechanism to deliver the malware, disguising themselves as stolen security software and digital certificates.

The spread of the Lazarus virus was facilitated by the fact that South Korean Internet users are often asked to install additional security programs when visiting government websites or Internet banking websites, explained the head of the investigation, Anton Cherepanov.

"The WIZVERA VeraPort integration installation program is widespread in South Korea. After installation, users can download the necessary software for a specific website. This scheme is usually used by the South Korean government and banking websites. For some of these sites, the presence of WIZVERA VeraPort is mandatory,” said Mr. Cherepanov.

Attackers used illegally obtained code signing certificates to inject malware samples. And one of these certificates was issued to a firm specializing in security - the American branch of a South Korean security company.

"Hackers disguised Lazarus malware samples as legitimate programs. These samples have the same file names, icons and resources as legitimate South Korean software," said Peter Kalnai, who was involved in the investigation of the attack.

ESET's analysis once again demonstrated the non-standard nature of the methods of intrusion, encryption and configuration of the network infrastructure, which has become the business card of Lazarus hackers.

It is worth noting that on November 13, Microsoft representatives reported that, according to their data, in recent months, three APT groups attacked at least seven companies engaged in COVID-19 research and vaccine development. The Russian-speaking group Strontium (Fancy Bear, APT28, and so on), as well as North Korean Zinc (Lazarus) and Cerium, are blamed for these attacks.

Hacker group Zinc (aka Lazarus) mainly relied on targeted phishing campaigns, sending potential victims emails with fictitious job descriptions and posing as recruiters.

Pos Malaysia: Malware Attack Disrupts Internal Systems and Online Services

IT infrastructure of Pos Malaysia, postal delivery service in Malaysia, took a major hit from ransomware which rendered some of its online services inaccessible. After detecting the attack on Sunday, the company took immediate measures to shut down internal systems and parts of its online systems; they also lodged a police report with Royal Malaysia Police for attempted malware attack and reached out to concerned authorities to ensure the safety of their systems and database.

The website of the company was displaying an error message during the downtime, which said, “Sorry, we are under maintenance.” It was discovered during a system update on October 20 and since then, the company released three statements insisting on the safety of customers’ personal data and sensitive information. It assured that no user data was compromised and the issues are being rectified. Gradually, several of Pos Malaysia’s online services have been made accessible while over the counter services remain available at the company’s branches nationwide. However, the officials refrained from providing a specific timeline for the entire restoration of the halted services.

Seemingly, it was a major attempt that caused disruption in the company’s internal systems and online services for the past few days and subsequently affected the overall company’s operations.

In a statement on Facebook, Pos Malaysia told, “Our team has managed to rectify and restore several of the system and online services. We assure our customers that their data and personal information are safe.”

“We extend our apologies for the inconvenience caused and thank our customers for their kind understanding, patience and support during this period. We will provide regular updates from time to time,” it added.

Announcing that the services will be restored and made fully accessible gradually, a spokesperson told The Star, "Customers and business partners may now gradually access our services. Over the counter services at all branches remain available.”

"Currently, proactive steps are being taken by our IT recovery team to ensure minimal impact to our customers and business partners. While contingency plans are being considered to rectify and restore online operations, the majority of our services at all Pos Malaysia branches are still available," he added.

People who have made shipments via Pos Malaysia or have pending shipments and it required them to share any sensitive data with the postal delivery company, odds are it would have been compromised in the attempted malware attack, therefore, they are advised to check their private credentials where necessary.

Ransomware Attack Leaves Johannesburg without Power

A key electricity supplier for the largest South African city, Johannesburg, experienced a massive ransomware attack which led to the shutdown of the city's computer systems on Thursday.

In a series of tweets, City Power announced that the ransomware virus encrypted all their databases, applications and networks; all of which is being reconstructed by their ICT department.

They further told that the customers may not be able to access their website and may not be able to purchase electricity units until the issue has been sorted out by their ICT department.

As the website continued to be offline, the victims resorted to social media in order to report the issues occuring with their electricity supplies.

The type of ransomware employed in the attack is still a matter of question, however, with the magnitude, the power of this cyber power attack can be gauged. Besides, restricting customers from buying pre-paid electricity, it also affected the attempts made by City Power to respond to localized blackouts.

Commenting on the matter, a spokesman for City Power said, for the people affected, "These are the people on the pre-paid system[s] and would at any given day buy electricity,"

"Those people were not able to access the system." he added.

A new virus attacked computers in Russia

Cases of malicious e-mails to Russian companies have become more frequent. Attackers write on behalf of Banks, large air operators, car dealers and mass media. They offer cooperation to companies and advise to open the file in the attachment, where there are details about a good deal. If the user does this, the computer is infected with the so-called Troldesh virus. This malware encrypts files on the infected device and demands a ransom.

Fraudsters claim that they are employees of companies and attach a password-protected archive to the letter, in which, according to them, the details of the order are indicated. But in fact, a malicious virus is attached to this email. When a victim gains access to the archive, important files are blocked in his operating system that can be opened only by paying a ransom to the fraudsters. Of course, the addresses from which the letters were sent are fake.

Group-IB found out that in June more than a thousand such messages were sent to different Russian companies. The number of attacks using Troldesh only in this quarter increased 2.5 times compared to 2018. Yaroslav Kargalev, the Deputy Head of Information Security Incident Monitoring and Response Division of Group-IB, said that it is almost impossible to destroy the virus.

Experts of Group-IB noted that Troldesh was previously sent out mainly on behalf of Banks, however, at the moment, the attackers stopped doing it, as Banks have strengthened measures to counter phishing.

It is interesting to note that Troldesh can be bought or rented at specialized sites on the Darknet. Judging from the latest attacks, Troldesh not only encrypts files but also mines cryptocurrency and generates traffic to websites, thereby increasing their traffic and revenue from online advertising.

Experts of Group-IB also stressed that a fairly large-scale infrastructure is involved in the virus distribution, which includes servers, infected IoT (Internet of Things) devices, for example, routers. Now the virus distribution campaign is still active.

It is worth noting that Troldesh attacks companies not for the first time. Such attacks were first recorded in 2015, and the largest took place in March 2019. Then messages came from well-known retailers, as well as financial and construction companies.

StalinLocker: ransomeware deletes data if correct code is not put in time

A new ransomware has been discovered called StalinLocker, or StalinScreamer, that gives victims of the attack 10 minutes to put in the correct unlock code and if they’re not able to do that, erases all the data on the infected device.

The ransomware does not actually demand any ransom, other than the condition given to unlock the victim’s device.

Named after Joseph Stalin, the late leader of the Soviet Union, the malware pays tribute to him by showing a red screen with a picture of Stalin, along with the USSR anthem playing in the background, when StalinLocker takes over the computer and the 10 minute countdown begins.

The ransomware was discovered by MalwareHunterTeam, which on Twitter explained how the malware worked and how to know the code to unlock your locked device.

According to them, the code can be guessed by subtracting the date the malware was run by 30/12/1922, which is the date that represents the foundation of the USSR.

This ransomware, unlike others, seems to purely focus on destroying user data as it does not demand any ransom in Bitcoin or other ways but simply attempts to erase all data if conditions are not met. If the user correctly enters the code, however, the files are unlocked with no problem.

The malware is similar to a previous one that forced victims to PlayerUnknown’s Battlegrounds game for an hour to get their device unlocked, but unlike StalinLocker, it did not threaten the erasure of the victim’s data.

Currently, StalinLocker is in a testing stage but it could turn out to be a major problem for Windows users once it is out for good.

Cyber attack in Japan : Malware steals 3k confidential documents from farm ministry

In a suspected Cyber attack against the Japan, Foreign hackers might have compromised more than 3000  confidential data from the country's Ministry of Agriculture,Forestry and Fishery by infecting the ministry's system with a malware.

Investigators from the governemnt revealed that malware used in the suspected cyber-attack to be HTran, a connection bouncer program believed to have been developed by a Chinese hacker group around 2003, The report from The Daily Yomiuri says.

HTran is often used in cyber-attacks to steal information, as it can send data secretly.

"The programme was also used to steal data from the Finance Ministry, as HTran data transmissions were discovered to have taken place from October 2010 to November 2011" The report says.

Initially, the ministry did not inform the police, despite the fact that the intrusion fell under the Unauthorized Access Prohibition Law. However, now, the police have launched their own investigation to determine what information has been compromised.

Biggest Cyber attack in India's history, 10k Indian government emails hacked

Indian Government have suffered one of the biggest cyber attack in the country's history. Hackers managed to compromise more than 10,000 email address of top government officials.The attack occurred on July 12 this year.

The cybercriminals managed to steal email IDs belong to official working at the Prime Minister's office, Defence, external affairs, finance ministries and Intelligence agencies.

The attack occurred on July 12 this year, four days after the government was warned by the National Critical Information Infrastructure Protection Centre (NCIIPC).

According to Indian Express, News of the attack was confirmed by officials of intelligence and enforcement agencies at a day-long NCIIPC meeting in New Delhi this week.

#BatchWiper, a new data-wiping virus targets Iranian computers

Recently, The Iranian CERT reported that a new piece of malware targets Iranian computers that capable of wiping the files from the infected computers.

SophosLabs have analyzed the new sample and confirmed that the malware attempt to erase the contents of any files on D, E, F, G, H and I drives.

The malware is distributed as a self-extracting WinRAR archive called GrooveMonitor.exe that drops three executable files: juboot.exe, jucheck.exe and SLEEP.EXE.

The 'justboot.exe' is a DOS BAT file that has been converted to PE format that uses 'SLEEP.exe' to wait for few seconds before it adds a registry entry that ensures that 'jucheck.exe' is executed each time the computer restarted.

The primary function of the malware is wiping the files from hard drive, but it does so only within few specific date ranges, each about two days long.

After deleting the data , the malware runs chkdsk in order to trick the victim into believing that the files have been corrupted because of software or hardware failure.

ACH Bank Transfer Refusal Scam leads to Malware Attack

 MX Labs reports that they recently intercepted a lot of emails that warned internauts of certain banks that didn't accept payroll payments or transfers , this scam comes with malware attachement.

The Email Scam with following subject:
  • ACH debit transfer was hold by Yolo Community Bank
  • ACH payroll payment was not accepted by Central Trust and Savings Bank
  • ACH Transfer was not accepted by Eldorado Bank
  • ACH debit transfer was hold by The Mechanics Bank
  • Funds transfer was hold by our bank
They spoofed the email address and send the following message:
Dear Madam / Sir,

I regret to inform you that ACH payroll payment initiated by you or on your behalf was not accepted by Central Trust and Savings Bank.

Transaction ID: 17036653478735
Current status of transaction: on hold

Please review transaction details as soon as possible.

Theodore Parham
Payments Administration
Central Trust and Savings Bank

"review transaction details" link leads to malicious page.  The malicious site ask you to download the adobe flash player with pop up message.  The file is 233kb and named as "Flash.exe".  if you guessed, yes It is malware.

Kaspersky detect it as Trojan-Spy.Win32.Zbot.coak and McAfee detects it as Artemis!C5D161117328.

Several Windows registry changes will be exectued and the trojan can establish connection with the IP on port 11760.

At the time of writing, only 12 of the 43 AV engines did detect the trojan at Virus Total.

Brazil ISP servers under DNS cache Poisoning attack , spreads Trojan

"Brazil ISP servers under massive DNS cache Poisoning attack"warns Kaspersky Lab expert Fabio Assolini.  When Brazilians try to visit facebook,google,youtube and othe websites, pop message asked to install Google Defence or some java applet in order to access the sites.

Some innocent peoples will install without knowing what problem will occur.  if you are the reader of EHN or Know about Security risks , you know what happen.  Yes, it will spread the banking Trojan. 

"Brazil has some big ISPs. Official statistics suggest the country has 73 million computers connected to the Internet, and the major ISPs average 3 or 4 million customers each. If a cybercriminal can change the DNS cache in just one server, the number of potential victims is huge," he points out.

According to Kaspersky, the same IP address hosted a number of malicious files and several exploits, and targeted users seem to be exclusively from Brazil.
In fact the file ad.html is an encrypted script, exploiting CVE-2010-4452 and running arbitrary code in an old installation of JRE. The exploit detected by us as Exploit.Java.CVE-2010-4452.a calls up one of the files in this list.

Infecting peoples with DNS Poisoning attack is very easy because users believe their trusted sites. Cyber criminals paid an employee who has access to the DNS records to modify them so that user are redirected to the malicious site.

Assolini notes that last week the Brazilian police has arrested an employee of an ISP located in the south of the country, and that he stands accused of changing his employer's DNS cache and redirecting users to phishing websites - no doubt at the behest of the people running them. "We strongly suspect similar security breaches will be happening in other small and medium ISPs in the country," Assolini commented.

But random Internet users are not the only one who have been targeted by this type of attack. Employees of various companies have also been seeing similar pop-up windows when they tried to access any website. Once again, they were actually offered a banking Trojan for download.

The attack was made possible by flaws in the networking equipment used by their companies. Routers and modems were accessed remotely by attackers who changed the devices' DNS configurations.

Duqu is an upgraded version of Stars, Spyware that infected Iran

One of Best Antivirus firm ,Kaspersky enabled protection against the infamous Duqu worm.  Now it detects all version of Duqu.  Kaspersky's Developers Successfully updated the kaspersky to detect Trojan.Win32.Duqu and all other Trojans that exploit the CVE-2011-3402 vulnerability.

Recently, the Duqu Trojan became infamous that successfully exploit the Zero-Day Vulnerability. You can get more information about the malware here.

Following that, Organization start to give protection against the Duqu Trojan. NSS Labs released Anti-Duqu tool.

Also Microsoft issued a temporary fix for this vulnerability.

Duqu is Upgraded Version of "Stars" Malware in Iran:
The Research at Kaspersk's Lab unveils additional information about the Duqu worm.  As the result of their investigation, Duqu is first spotted as "Stars" Malware(a malware created to spy on Iran's nuclear system). 

April 2011(this year), Iran announced that they were under cyber attack with Malware named as "Stars" . Kaspersk researchers confirmed that some of the targets of Duqu were hit on April 21, using the same method involving CVE-2011-3402, a kernel level exploit in win32k.sys via embedded True Type Font (TTF) file.

According to analysis by IrCERT (Iran's Computer Emergency Response Team) Duqu is an upgraded version of "Stars".

Anti-Duqu available for free, 100% Accurate detection of Duqu

Duqu(similar to Stuxnet) is notorious worm that exploit Windows Zero-day Vulnerability.  Microsoft released temporary fix yesterday for this vulnerability .  NSS Labs claimed that they developed very accurate Duqu detection tool , available for free .

This tool detects all DuQu drivers installed on a system.  This tool was developed in the hopes that additional drivers can be discovered to allow us to learn more about the functionality, capabilities and ultimate purpose of DuQu.

According to the test, NSS tool Success rate is 100%, zero false positivies. Developers said it is using advanced pattern recognition techniques, it is also capable of detecting new drivers as they are discovered. 

Two new drivers were discovered after the tool was completed, and both were detected by the NSS tool with no updates required.