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Ransomware Attack Disrupts Belarusian Cloud Provider ActiveCloud, Affecting Business Services

  A ransomware attack on Belarus-based cloud services provider ActiveCloud has caused issues with websites, business email and virtual serve...

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Cyberattack on Quantum Systems Disrupts German Military Drone Operations


German defence technology company Quantum Systems has confirmed that it was targeted in a cyberattack in late October.

The incident involved a compromised software update server used to distribute updates for the company's QBase ground-control and mission-planning software.

The company said it detected suspicious activity linked to an active cyberattack carried out by unidentified hostile actors. It responded by working with government authorities to contain the threat and ensure its unmanned systems could safely resume operations.

Quantum Systems manufactures reconnaissance and interceptor drones, along with software used to control and manage their missions. Its drone systems are deployed by the German military and are also used in support of Ukraine.

Malicious software update compromises drone systems

According to reports by German newspaper Der Spiegel and the Financial Times, attackers compromised a server responsible for distributing software updates for Quantum Systems' QBase platform.

The attackers placed a malicious update file on the compromised server, disguising it as a legitimate software update. Since QBase is used for ground control and mission planning, the incident raised concerns that malicious software could reach systems used by military drone operators.

Der Spiegel reported that the Vector reconnaissance drone, known as Falke in German military service, is among the systems whose missions are planned using QBase software.

The unauthorised update triggered alarms within Quantum Systems after it was distributed to customers. However, it remains unclear how many customers downloaded or installed the malicious file.

German military grounds drones as precaution

The cyberattack disrupted German military drone operations, prompting the armed forces to ground Quantum Systems' drones as a precautionary measure.

According to media reports, the decision also resulted in the company's drone systems being excluded from a recent military exercise.

Quantum Systems said it believes the company was targeted because of its support for Ukraine. The company has also highlighted the growing number of cyberattacks against European defence organisations.

German authorities investigate the incident

Germany's military counterintelligence service (MAD), domestic intelligence agency (BfV), and Federal Office for Information Security (BSI) are involved in the investigation.

Quantum Systems said it is cooperating with government authorities to investigate the incident and address the security concerns. However, the company has not publicly identified the attackers or provided details about their methods and objectives.

In July, Australian drone manufacturer CubePilot also experienced a DNS hijacking attack that caused operational disruption.

Hackers Exploit New N-able N-central Zero-Day Hours After PoC Release

 

Hackers began exploiting a new zero-day vulnerability in N-able N-central within hours of a proof-of-concept exploit becoming public. The flaw, called 4EverAble2Shell, can let unauthenticated attackers execute code with root privileges on vulnerable N-central servers, including systems running the latest available patches. 

The vulnerability was published on GitHub by security researcher Sean Bales, two days after N-able released fixes for several other flaws he had disclosed. 4EverAble2Shell chains an exploit for a recent Apache Axis vulnerability, CVE-2026-90436, with an unspecified flaw affecting N-central deployments that have the Legacy API enabled. The Apache Axis issue has a CVSS score of 9.8, reflecting its critical severity. 

Modus operandi 

The attack chain first exploits the Apache Axis bug to achieve remote code execution. It then attempts to elevate its privileges to root and run a shell script. Researchers said the chain works against N-central servers updated to 2026.4 HF2, build 2026.4.1.26, which had already received fixes for earlier Able2Shell zero-days. This means applying the latest hotfix alone does not fully eliminate the risk. 

N-able responded by restricting several N-central features and integrations, including the Legacy API and Intune integration. The company said it had identified additional indicators of compromise and was working with affected customers to assess and mitigate potential risks. On November 12, Bales also published proof-of-concept code for Agent2Shell, a set of roughly a dozen zero-day flaws that could allow attackers to execute commands on managed Windows agents with System privileges. 

Threat intelligence firm Previdian reported that attackers began using the 4EverAble2Shell proof of concept within hours of publication. WatchTowr also observed probes targeting N-central systems with the Legacy API enabled. Lupovis and Huntback found evidence of successful compromises about five hours after the exploit was released, with attackers deploying an XMRig cryptocurrency miner and using systemd or cron for persistence. 

The attackers named each miner after the victim’s IP address. Lupovis said the attacker’s wallet showed 21 rigs connected to compromised N-central servers in the United States, South Africa, Canada, the United Kingdom, Germany, France, and Sweden. The researchers said their decoy systems did not execute the exploit, confirming that the listed systems were real victims. 

Huntback found that 19 victims had already applied N-able’s latest patches. The firm warned that the miner may be the only observed payload, but the privilege escalation gives attackers root access to a server that manages customer endpoints. Security teams should therefore treat any successful exploitation as a full compromise rather than a minor cleanup task. 

Organisations using N-central should immediately disable the Legacy API where possible, apply vendor guidance, review logs for exploitation indicators, and rotate credentials connected to affected systems. They should also inspect AWS, Azure, and other connected environments for suspicious access, because root-level compromise of an RMM server can expose downstream customer networks.

PostgreSQL’s Largest Ever Security Release Patches 52 Flaws, Including a 22-Year-Old Bug Any Logged-In User Could Weaponize

 


The PostgreSQL Global Development Group shipped security updates on November 12 for all five supported major versions, issuing fixes for 52 vulnerabilities at once: the largest security release the project has published. Thirty-two of the 52 flaws carry a CVSS 3.1 score of 8.8, with no user interaction required, full confidentiality and availability impact, and network reachability through a low-privilege login. The fixed releases are 18.7, 17.12, 16.16, 15.20, and 14.25.

At the center of the batch is CVE-2026-6460, a type confusion flaw in how PostgreSQL handles composite types — data structures built from named fields. When a field's type is changed after values of the original type are already stored, PostgreSQL's binary representation keeps those old bytes intact while the catalog metadata shifts around them. The server then reads a stale value through the new type's output function. That mismatch is enough for a database user who can create objects to run arbitrary code as the OS account running PostgreSQL, no superuser status, no extensions, no file access.

The trigger takes exactly four SQL statements. A user creates a composite type, prepares a query using it, alters the attribute to a different type, then executes the prepared query. The backend selects the wrong output handler, dereferences a null pointer, and crashes. That crash is the entry point.

Security researcher Mehmet Ince found the flaw and published a writeup alongside a demonstration on PostgreSQL 18.6. He traces the root cause to a commit made May 5, 2004, the one that added ALTER TABLE ... ALTER COLUMN ... TYPE. That logic never accounted for prepared statements holding values built against the old type. The code sat there for 22 years. His exploit chain defeats ASLR through a related confusion involving PostgreSQL's unnest() function, then calls system() through a forged object whose methods table points at the system call. He stopped short of publishing that final step. He found 21 variants of the problem in total, and six of the 52 CVEs in this release trace to his work. The release credits 18 researchers for CVE-2026-6460 alone, including PostgreSQL core developers Heikki Linnakangas and Andres Freund, along with the OpenAI Security Research Team and the Anthropic OSS program.

Before going public, Ince spent August coordinating with every major managed provider. He shared working proofs of concept with AWS covering both Aurora and RDS, Microsoft for Azure Database for PostgreSQL, Google for AlloyDB, Supabase, Databricks, and Ubicloud. Google AlloyDB escalated the report to its highest internal priority. Databricks validated the exploits the same day they arrived. Several vendors deployed their own mitigations before the upstream release shipped. Their current patch status is not public, so administrators on managed services should verify the minor version their provider is running.

The release also contains a flaw that skips authentication entirely. CVE-2026-116322, rated 5.3, lets any client restart a PostgreSQL 18 server without logging in. It involves a cancel request and a spinlock held during the authentication timeout window. Two further vulnerabilities sit in the client tools: a crafted archive fed to pg_restore can execute code as whoever invoked it, and a compromised source server can inject commands through the restore script inside pg_dump's tar output to any psql client connecting to it.

The November release permanently closes the PostgreSQL 14 branch. Version 14.25 is its last update. Administrators still on that version are running unsupported software from today. PostgreSQL 15 reaches the same status in November 2027.

Upgrading involves more than swapping binaries. The fix for CVE-2026-6460 changes the server's internal ABI for C-language extensions, which must be rebuilt against the patched version. Extensions compiled for the new release will not load on an unpatched server, so the upgrade and the rebuild must happen together. A new server setting, composite_type_mismatch, enables the type-version checks behind the fix; the project says disabling it carries security risk. Client tools must be updated on every machine running them, not just servers. Clusters managed by Patroni or any custom service unit need a manual restart. Users of incremental backups should take a new full backup before anchoring further incrementals. No workaround exists for the principal vulnerability on servers that cannot be patched, and PostgreSQL has reported no attacks in the wild.

The same acknowledgment list that names Ince, Linnakangas, and Freund also includes AI-assisted tooling. That dynamic cuts both ways. PostgreSQL 19, normally shipped in September or October, was pushed to November 19 partly because AI and LLM tools generated enough new reports to overwhelm the maintainers' review capacity before the feature freeze. Developer Robert Haas noted that LLM-drafted patches still need human review to meet project standards, and consultant Christophe Pettus pointed to the volume of low-quality machine-generated reports as a growing burden. The same tools that surfaced a 22-year-old bug made it harder to ship the next version.


SilentAir Hacks Asian Telecom Networks to Intercept Calls and SMS Verification Codes

 

A cyber espionage group known as SilentAir has been attacking telecoms infrastructure throughout Asia to listen in on selected individuals’ calls and text messages. This was uncovered by Enea, a telecom security firm based in Stockholm. They believe with high confidence that the campaign is state-sponsored, however it is uncertain how connected it is to China. Enea were able to trace the attacks to compromised devices within mobile operators in at least 6 countries throughout Asia. 

They have informed the operators but cannot confirm that all devices are now clean. SilentAir attacked the trust between mobile networks using the SS7 and Diameter protocols to communicate. This communication occurs on the IPX network which links all operators together. They sent false UpdateLocation messages to the compromised devices claiming they were the serving network for targeted users. When this was accepted calls and texts were redirected towards the attacker. Whilst they were intercepting some calls, Enea were able to see SMS 2FA codes being captured straight after the redirection. This suggests they were trying to breach other accounts for their victims. 

However during their investigation there was no confirmation that they were able to take over any accounts, nor was there any evidence of voice calls being intercepted. Intercepting calls made up 18.3% of the attacks they observed compared to only 2.1% from their previous research into common signalling attacks. There were many high value targets such as political and government individuals. 

In some cases multiple compromised devices were used across different countries to target the same individuals suggesting there was some central control. The attacks occurred in short bursts. At times thousands of subscribers were targeted but then nothing happened for months. Whilst the main focus was Taiwan, networks across Southeast Asia, East Asia, East Africa, Central Asia, Middle East and Europe were also targeted. 

There was a large amount of silent SMS being used. Many targeted Taiwanese subscribers during the evening, potentially to check if the redirection was working. Many were sent during the day to subscribers on other networks. The messages had generic English text relating to promotions and motivation, so could have been seen as spam if the silent settings were turned off by the operators. Enea started to see strange signalling activity in early 2025. 

Eventually they were able to see compromised devices sending and receiving attack commands confirming that the operators internal infrastructure had been compromised. They looked into potential links with another telecom focussed threat group called Liminal Panda but there wasn’t enough evidence to connect them. SilentAir also had similarities to SCTPE, a Linux based tool used to manage SS7 and Diameter traffic. This has been referred to as SIGweaver within a government advisory from Singapore. 

However the capabilities differ and there was not enough operational security to link them. Liminal Panda activity was also detected by Enea across multiple customer networks in early 2026. They blocked GTPDoor backdoor traffic across at least 5-10 operators. The new version of this is harder to detect as it hides the commands within GTP-U traffic.

Enea recommend using GTP-C and GTP-U firewalls, treating all IPX connections as untrusted and ensuring telecom monitoring is brought into the wider IT security.

Operation Endgame Takes Down Three Malware Networks, Recovers 6.4 Million Stolen Logins


An international law enforcement operation has shut down the infrastructure behind three major malware operations: Gootloader, CastleRAT and StealC, seizing 235 servers and 257 domains used by cybercriminals to distribute malicious software, steal sensitive information and support ransomware attacks.

Operation endgame disrupts three major malware networks

The coordinated action, conducted as part of Operation Endgame, also resulted in the identification and seizure of approximately 6.4 million stolen login credentials belonging to victims worldwide. According to Germany's Federal Criminal Police Office (BKA), the credentials were associated with more than 40,000 victims.

Gootloader spread malware through compromised websites

Gootloader is a malware loader that enables attackers to gain initial access to compromised computers and subsequently install additional malicious programs, including ransomware. Its operators distributed malware through fake legal documents hosted on compromised websites, frequently exploiting hacked WordPress sites.

The attackers also used search engine optimisation (SEO) poisoning to manipulate search results and direct unsuspecting users towards malicious downloads. 

Since 2018, Gootloader has infected at least 25,000 computers worldwide, according to the U.S. Department of Justice. In the United States alone, the malware has been linked to ransomware attacks against at least 44 victims, resulting in estimated losses of approximately $28.8 million.

As part of the operation, authorities dismantled 14 servers and 218 domains associated with Gootloader and cleaned 681 compromised websites.

Castlerat and stealc enabled remote access and credential theft

The investigation also targeted CastleRAT, a remote access trojan that allows attackers to remotely control infected systems and use them for malicious activities. Authorities seized 120 servers and 39 domains linked to the operation.

Meanwhile, StealC, an information-stealing malware, was another major target. The malware is designed to extract sensitive information, including passwords, stored credentials and digital identities, from compromised computers. 

This latest disruption follows an earlier law enforcement action against StealC in June 2026. Following that operation, its operators reportedly rebuilt their infrastructure and resumed activities to evade investigators.

Europol's European Cybercrime Centre (EC3) supported the investigation through cyber intelligence, financial tracking and victim identification. Authorities also plan to make information about affected users available through several cybersecurity platforms, including Have I Been Pwned, and the Shadowserver Foundation.

Although no arrests were announced during this latest action, Dutch authorities have continued investigations targeting Gootloader's suspected main operator.

Hackers Steal Personal Information in Cyberattack on University of Texas at Arlington


UTA has confirmed that hackers have stolen personal information as a result of a cyberattack last month that affected its IT environment. A university investigation into unauthorized activity has led to this disclosure, although the university has not yet determined the full extent of the data exposure or identified all individuals whose information may have been compromised as a consequence of the data exposure. 

During a response to Recorded Future News, a university spokesperson confirmed the investigation identified data theft, but did not provide specific details regarding which types of information were accessed by the attackers. As part of the university's ongoing efforts to determine the scope and nature of the compromised data and identify potentially affected students and employees, we are currently conducting research. 

According to UTA, individuals who are identified as affected will receive notifications describing the incident, the information involved, and the methods available for protecting their personal information. In addition, the university plans to provide support and guidance to individuals whose information has been exposed. 

In the initial phase, the incident was noticed following disruptions involving MachForms, an online platform used for registrations, service requests, surveys, and other administrative functions. UTA immediately took the platform offline as a precautionary measure following the discovery of the security incident. 

While the investigation continues, MachForms will remain unavailable. The university has also monitored its IT environment to detect any further impacts on its systems or daily operations. There has been no specific timeline provided for the restoration of the affected service. With approximately 41,000 undergraduate and graduate students, The University of Texas at Arlington is one of the most prestigious higher education institutions in Texas. 

It is alarming to learn that personal information belonging to academic and administrative members of the university was stolen, raising concerns about the possibility of sensitive data being exposed. A ransomware attack was claimed earlier this week by the Qilin ransomware group. Qilin has established itself as one of the most active ransomware groups targeting a variety of industries. 

Halcyon Ransomware Research Center figures indicate that between July and September 2026, the group is believed to be linked to 344 alleged ransomware incidents, placing it among the top ransomware operators at that time. In addition to the recent arrest of one of the ransomware operation's prominent affiliates in Japan and extradition to Germany, Qilin has also been attracting attention as a result of a series of developments involving its affiliates and leadership. 

The Russian national Aleksey Mikhailovich Yakovtsev has been identified as a leader of the ransomware network by cybersecurity companies and independent researchers, adding to ongoing investigations into the individuals behind the ransomware network. In addition to claiming responsibility for attacks on the US Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF), the group has also claimed responsibility for attacks on government and institutional targets in the past few months. 

Using its double-extortion strategy, the organization threatens to publish the stolen files if victims refuse to pay ransom. These tactics increase the workload on organizations, particularly those that handle large volumes of personal and administrative information. This incident occurs during a period when higher education institutions are experiencing a series of ransomware attacks. 

According to York University's recent announcement, attackers have accessed and taken substantial amounts of student information, including more than a decade of student records. Besides raising concerns about the long-term exposure of personal information maintained by academic institutions, Vanderbilt University has also suffered from a separate ransomware attack which has adversely affected its operations. 

University officials have advised that it may take several weeks to restore normal operation across the university's systems. The university's efforts to recover are concentrating on essential services such as payroll, payment processing, admissions, course registration, and public safety. Vanderbilt remains under investigation for possible data theft. 

A group responsible for BYOD ransomware has claimed responsibility for the incident at Vanderbilt, as well as recent attacks that affected Michigan State University and New Mexico University. Newly emerging groups and their operations are relatively unknown to researchers. There has been an increasing number of attacks against universities, which have highlighted the risk faced by educational institutions that maintain extensive student, employee, and administrative databases. 

Having disruptions to academic services, combined with unauthorized access to personal data, can adversely affect institutions and their communities for a long period of time. Immediately, the top priority at UTA is determining the scope of the breach, identifying those affected, and restoring the impacted services in a secure manner. 

As higher education institutions manage large quantities of sensitive student and employee data, cybersecurity risks are becoming increasingly important. As UTA continues to assess the extent of the breach and identify affected individuals, this case illustrates the importance of strengthened data protection measures, timely incident response, and continuous monitoring of university information technology systems. 

As well as reflecting the persistent threat that ransomware groups pose to educational institutions, Qilin's involvement also demonstrates the possibility of long-term consequences when disrupting operations and revealing data.

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