Ursnif — Örnek SHA256: 4101cab8 | High Tehdit Analizi

Cryptographic Identifiers

Malware Family: Ursnif

Ursnif, 2007'den beri aktiftir.

Threat Indicators (IOC)

• SHA256: 4101cab81e757fa62ac9cb4bdd0d3102e5be0796ceec17b4a5b04d46b5cc3cdb
• MD5: b243fbf64686efc156a7248db8bac0ec

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: 4101cab81e757fa6"
        threat_level = "high"
        first_seen = "2023-05-25"
    condition:
        hash.sha256(0, filesize) == "4101cab81e757fa62ac9cb4bdd0d3102e5be0796ceec17b4a5b04d46b5cc3cdb"
}