Nýr lausnarhugbúnaður Rook er byggður á Babuk frumkóða

Sentinel One experts hafa uppgötvað a new ransomware Rook, which appears to be based on the long-leaked source code of the Babuk ransomware.

The malware payload is usually delivered via Cobalt Strike, using phishing emails and pirated torrents as the initial infection vector. For more stealth, Rook payloads are packaged using UPX or other cryptographic means.

When launched, the ransomware tries to terminate any processes related to security mechanisms or other things that might also interrupt encryption.

The report also notes that Rook uses vssadmin.exe to remove shadow copies.

Hingað til, researchers have not found any pinning mechanisms on the system, so Rook encrypts files by adding the .Rook extension to them, and then deletes itself from the compromised machine.

The researchers write that they noticed numerous code similarities between Rook and Babuk, whose source code was published on a Russian-language forum in the fall of 2021. Til dæmis, Rook uses the same API calls to get the name and status of each running service, and the same functions to kill them. Auk þess, the list of eliminated Windows processes and services is the same for both ransomware (þar á meðal: Steam, Microsoft Office and Outlook email client, sem og Mozilla Firefox and Thunderbird). Þar af leiðandi, Sentinel One experts conclude that Rook is based on the Babuk source code.

Ég minni á að við skrifuðum það Khonsari ransomware attacks Minecraft servers, sem og það Vísindamenn uppgötvuðu ALPHV lausnarhugbúnaður skrifaður í Rust.