HOMETHREATSSigrun Ransomware
APT / THREAT GROUP

Sigrun Ransomware

1
aliases

Intelligence Profile

When Sigrun is executed it will first check "HKEY_CURRENT_USER\Keyboard Layout\Preload" to see if it is set to the Russian layout. If the computer is using a Russian layout, it will not encrypt the computer and just delete itself. Otherwise Sigrun will scan a computer for files to encrypt and skip any that match certain extensions, filenames, or are located in particular folders.

Threat Analysis

Sigrun Ransomware is a known-sophistication threat actor of undetermined national origin, engaged in cyber operations with a primary motivation of unknown activity patterns.

External References

→https://www.bleepingcomputer.com/news/security/sigrun-ransomware-author-decrypting-russian-victims-for-free/
→http://id-ransomware.blogspot.com/2018/05/sigrun-ransomware.html

Quick Facts

TypeAPT / Threat Group
Aliases1

Also Known As

Sigrun Ransomware

Research Links

MITRE ATT&CK VirusTotal Google (news) Twitter/X search
Data sourced from Malpedia, Ransomware.live, RansomLook, and CTIWATCH OSINT collection. Actor attribution is based on available intelligence and may be incomplete.
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