Sigma Ransomware

Malware type
ransomware
Family
Malware family
Profile updated
2026-07-07 13:42:46

Targeted industries: education-and-nonprofits retail-and-hospitality technology-and-telecommunications professional-services

Context

Today one of our volunteers, Aura, told me about a new new malspam campaign pretending to be from Craigslist that is under way and distributing the Sigma Ransomware. These spam emails contain password protected Word or RTF documents that download the Sigma Ransomware executable from a remote site and install it on a recipients computer.

Reports & references

  • bleepingcomputer.com — Sigma Ransomware Being Distributed Using Fake Craigslist Malspam (report)

External references