FormBook — 20c76c5189319d05bf70a914ac36888ac32d490a [20c76c51]

Cryptographic Identifiers

Malware Family: FormBook

FormBook, MaaS infostealer'dır.

Threat Indicators (IOC)

• SHA256: 20c76c5189319d05bf70a914ac36888ac32d490aa15118dac53584a60a95d2ab
• MD5: 0cb7633274080ff2d0a829cb0313ed9d

System Cleanup Guide

1. Disconnect the system from the network immediately
2. Yeni bir cihazdan banka hesabı, sosyal medya ve e-posta şifrelerini değiştirin
3. Move crypto wallets to a new address and abandon the old ones
4. Start a full scan with up-to-date antivirus
5. Clear saved browser passwords and enable 2FA
6. Sign out of all sessions on every affected service

YARA Rule Hints

rule FormBook_SHA256 {
    meta:
        description = "FormBook sample: 20c76c5189319d05"
        threat_level = "high"
        first_seen = "2026-06-08"
    condition:
        hash.sha256(0, filesize) == "20c76c5189319d05bf70a914ac36888ac32d490aa15118dac53584a60a95d2ab"
}