Akira is a new family of ransomware, first used in cybercrime attacks in March 2023.
Kroll Cyber Threat Intelligence analysts have identified a new strain of ransomware, named CACTUS, targeting large commercial entities since March 2023. The name “CACTUS” is derived from the filename provided within the ransom note, cAcTuS.readme.txt, and the self-declared name within the ransom note itself. Encrypted files are appended with.cts1, although Kroll notes the number at the end of the extension has been observed to vary across incidents and victims.
In February 2022, Microsoft disabled VBA macros on documents due to their frequent use as a malware distribution method. This move prompted malware authors to seek out new ways to distribute their payloads, resulting in an increase in the use of other infection vectors, such as password-encrypted zip files and ISO files.
The Cybersecurity and Infrastructure Security Agency (CISA) shared the findings of an investigation by numerous cybersecurity agencies worldwide on May 9th, exposing the malicious cyberespionage operations carried out by the Russian FSB utilizing the “Snake” malware. The US-CERT Alert (AA23-129A) Hunting Russian Intelligence “Snake” Malware provided information about this investigation and takedown (along with attacker TTPs and IOCs).