Ransomware Tracker (Entry #240): Chaos v4.0
ID: ac5e9f4b-aca7-5c14-afa2-6ce50d96c60a
STIX ID: report--ac5e9f4b-aca7-5c14-afa2-6ce50d96c60a
Feed Name: WatchGuard Secplicity Blog
Threat Score
The entry documents the Chaos v4.0 ransomware builder, an update to the Chaos series that increases encryptable file size to 2 MB, adds customizable target file lists, includes ransom note and desktop wallpaper capabilities, and tweaks random data generation; the page clarifies it describes the builder itself (not encryptors created from it) and notes a decryptor exists for Chaos v3.0 via Yashma.
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