Ursnif — Örnek SHA256: 1f23a8be | High Tehdit Analizi

Cryptographic Identifiers

Malware Family: Ursnif

Ursnif, eski trojan'dır.

Threat Indicators (IOC)

• SHA256: 1f23a8be2e3cf81e2ab11b38df69ef7666e7925621854c062678e0aef5a8a5c2
• MD5: 3c9dd604080dda485452751854ca892d

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

System Cleanup Guide

1. Disconnect the system from the network — unplug ethernet, disable Wi-Fi
2. Terminate suspicious processes from Task Manager
3. Run a full system scan with Malwarebytes or Kaspersky
4. HKCU\Software\Microsoft\Windows\CurrentVersion\Run kayıtlarını kontrol edin
5. Review newly created tasks in Task Scheduler
6. Change all your account passwords from a clean device
7. Gerekirse Windows'u yeniden yükleyin ve verilerinizi temiz bir yedeğe geri alın

YARA Rule Hints

rule Ursnif_SHA256 {
    meta:
        description = "Ursnif sample: 1f23a8be2e3cf81e"
        threat_level = "high"
        first_seen = "2023-03-24"
    condition:
        hash.sha256(0, filesize) == "1f23a8be2e3cf81e2ab11b38df69ef7666e7925621854c062678e0aef5a8a5c2"
}