FormBook — a8d0d39ecb6c9bf04fe201e447a7f5eb9b53b7bc [a8d0d39e]

Cryptographic Identifiers

Malware Family: FormBook

FormBook, MaaS infostealer'dır.

Threat Indicators (IOC)

• SHA256: a8d0d39ecb6c9bf04fe201e447a7f5eb9b53b7bcd659946c568a9ed65ade2b92
• MD5: 40b58b9bc973e1432500c8e2cbbc5e21

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: a8d0d39ecb6c9bf0"
        threat_level = "high"
        first_seen = "2026-06-08"
    condition:
        hash.sha256(0, filesize) == "a8d0d39ecb6c9bf04fe201e447a7f5eb9b53b7bcd659946c568a9ed65ade2b92"
}