Attackers have increasingly started using Telegram as a control server (C2). One example is the Lazy Koala group, which we recently discovered and set out to study. While researching bots on Telegram, we found that …
While responding to an incident at one of our clients, the PT ESC CSIRT team discovered a previously unknown backdoor written in Go, which we attributed to a cybercrime gang dubbed ExCobalt.
ExCobalt focuses on cyberespionage and includes several members …
In November 2023, the team at the Positive Technologies Expert Security Center (PT ESC) released their first research report on attacks by the hitherto-unknown group Hellhounds on Russian companies’ infrastructure: Operation Lahat. The report focused …
While responding to an incident, the Incident Response team of Positive Technologies Expert Security Center (PT ESC) discovered an unknown keylogger embedded in the main Microsoft Exchange Server page of one of our customers. This keylogger was collecting …
In the first quarter of 2024, specialists from Positive Technologies Expert Security Center (PT ESC) detected a series of attacks targeting government organizations in Russia, Belarus, Kazakhstan, Uzbekistan, Kyrgyzstan, Tajikistan, and Armenia. We could not find any …
In 2023, our Positive Technologies Computer Security Incident Response Team (PT CSIRT) discovered that a certain power company was compromised by the Decoy Dog trojan. According to the PT CSIRT investigation, Decoy Dog has been …
When searching for necessary software, users often visit seemingly safe websites and torrent trackers to download, install and use programs. But are these programs truly safe? Illegal software could contain …
In October 2022, during an investigation into an incident at a Russian industrial enterprise, samples of previously unseen malware were discovered running on compromised computers of this organization. The names of this malware’s executable files were similar to the …
At the end of 2019, the team at the Positive Technologies Expert Security Center (PT ESC) discovered a new cybercrime group, which they dubbed Space Pirates. It had been active since at least 2017. The first-ever …