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DDoS Attacks Hit Ukrainian Government Websites

Read on to understand more about the attack.

 

DDoS attacks are causing havoc for the Ministry of Defense and the Armed Forces of Ukraine, as well as two of the country's state-owned banks, Privatbank (Ukraine's largest bank) and Oschadbank (the State Savings Bank). 

Bank customers got text messages saying that bank ATMs were down today, according to Ukraine's Cyberpolice, who added that the messages were "part of an information attack and do not correspond to reality." 

The Ukrainian Ministry of Defense, whose website was taken down as a result of the attacks, stated their website was most likely assaulted by DDoS: an excessive number of requests per second was observed. 

"Starting from the afternoon of February 15, 2022, there is a powerful DDOS attack on a number of information resources of Ukraine," Ukraine's State Service for Special Communication and Information Protection added. 

"In particular, this caused interruptions in the work of web services of Privatbank and Oschadbank. The websites of the Ministry of Defense and the Armed Forces of Ukraine were also attacked."

While the Ukrainian defence ministry's website is down, Oschadbank and Privatbank's websites are still up and running, albeit users are unable to access their online banking. Privatbank users have been experiencing problems with payments and the bank's mobile app, according to the Ukrainian Center for Strategic Communications and Information Security. Some stated that they couldn't get into their Privat24 internet banking accounts, while others said they observed inaccurate balances and recent transactions. 

A traffic geofencing rule was added to Privatbank's web application firewall (WAF), which automatically removed the website's contents for IP addresses outside of Ukraine and displayed a "BUSTED! PRIVATBANK WAF is watching you)" message. 

The Security Service of Ukraine (SSU) stated on Monday that the country is being targeted in a "massive wave of hybrid warfare" aimed at instilling fear in Ukrainians and undermining their faith in the state's ability to safeguard them. The SSU further stated that it has already blocked many such attempts related to hostile intelligence agencies, as well as dismantled bot farms aimed at spreading fear in Ukrainian residents through bomb threats and fake news.  

Attacks on Ukrainian authorities are being coordinated by the Gamaredon hacking organisation (connected to Russia's Federal Security Service (FSB) by Ukrainian security and secret agencies), according to the country's Computer Emergency Response Team. 

A day later, the SSU announced that it has prevented more than 120 cyberattacks aimed at Ukrainian governmental institutions in January 2022. 

Gamaredon has been directing a wave of spear-phishing emails targeting Ukrainian businesses and organisations relevant to Ukrainian issues since October 2021, according to Microsoft.
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