FormBook — RFQ_967.pdf.js [86226b8c]

Cryptographic Identifiers

Malware Family: FormBook

FormBook, MaaS infostealer'dır.

Threat Indicators (IOC)

• SHA256: 86226b8c291f202ae6d8ef819e46339998ad4a5c797e1901af64ad9f4c20e735
• MD5: d65747d31a2de8cf6d5b5212958e063e

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: 86226b8c291f202a"
        threat_level = "high"
        first_seen = "2026-06-10"
    condition:
        hash.sha256(0, filesize) == "86226b8c291f202ae6d8ef819e46339998ad4a5c797e1901af64ad9f4c20e735"
}