GandCrab — Örnek SHA256: 1991cf4a | Critical Tehdit Analizi

Cryptographic Identifiers

Malware Family: GandCrab

GandCrab, en yaygın eski ransomware'dir.

Threat Indicators (IOC)

• SHA256: 1991cf4a8b3e143f6c776ad486eaa5f0142e4cc451fed6e9da361557f6cb7b16
• MD5: 1b795c401b1a636f16fa6b9010bd5ba8

You can verify all hash values of this sample on VirusTotal.

System Cleanup Guide

1. Sistemi ağdan DERHAL ayırın — diğer cihazlara yayılmayı durdurun
2. Do not pay the ransom — there is no guarantee your files will be restored
3. Quarantine the affected drives
4. Kullanılan fidye yazılımı ailesini belirleyin (nomoreransom.org)
5. Try available decryptor tools (the NoMoreRansom project)
6. Report the incident to the authorities (cybercrime unit)
7. Temiz bir yedekten kurtarın; yedeğiniz yoksa sürücüyü saklayın

YARA Rule Hints

rule GandCrab_SHA256 {
    meta:
        description = "GandCrab sample: 1991cf4a8b3e143f"
        threat_level = "critical"
        first_seen = "2022-12-12"
    condition:
        hash.sha256(0, filesize) == "1991cf4a8b3e143f6c776ad486eaa5f0142e4cc451fed6e9da361557f6cb7b16"
}