Ursnif — Örnek SHA256: 4337ca05 | High Tehdit Analizi

Cryptographic Identifiers

Malware Family: Ursnif

Ursnif, 2007'den beri aktiftir.

Threat Indicators (IOC)

• SHA256: 4337ca05e3b34c4dd11e2b953ac4b4be983656ad1ba7d0986e09ead6738af970
• MD5: 061b71868d903eed324f56c693af715a

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: 4337ca05e3b34c4d"
        threat_level = "high"
        first_seen = "2023-03-29"
    condition:
        hash.sha256(0, filesize) == "4337ca05e3b34c4dd11e2b953ac4b4be983656ad1ba7d0986e09ead6738af970"
}