Kriptografik Tanımlayıcılar
| SHA256 | e6be3067bab6117f01d9fdf49cff95cac4d0a0e523fd9ce2d78dc01b5bf3a5d6 |
|---|---|
| MD5 | 03d13fc962bac6b04dc309cb345d2942 |
| Dosya Türü | zip |
| Boyut | 4927.4 KB |
| İlk Görülme | 2023-10-13 |
| Dosya Adı | Print data_20231012_561565029666.zip |
| Etiketler | Gozi, isfb, qusbec-com, Ursnif, zip |
Malware Ailesi: Ursnif
Ursnif, eski trojan'dır.
| Tür | Banking Trojan |
|---|---|
| Programlama Dili | C++ |
| Hedef Platform | Windows |
| C2 Protokolü | HTTPS |
| Amaç | Bankacılık trojanı |
| İlk Görülen Yıl | 2007 |
| Diğer İsimler | Gozi |
Tehdit Göstergeleri (IOC)
- SHA256:
e6be3067bab6117f01d9fdf49cff95cac4d0a0e523fd9ce2d78dc01b5bf3a5d6 - MD5:
03d13fc962bac6b04dc309cb345d2942
Bu örneğin tüm hash değerlerini VirusTotal üzerinde doğrulayabilirsiniz.
Sistem Temizleme Rehberi
- Sistemi ağdan ayırın — ethernet çıkarın, Wi-Fi devre dışı bırakın
- Görev Yöneticisi'nden şüpheli process'leri sonlandırın
- Malwarebytes veya Kaspersky ile tam sistem taraması yapın
- HKCU\Software\Microsoft\Windows\CurrentVersion\Run kayıtlarını kontrol edin
- Yeni oluşturulan görevleri Task Scheduler'dan inceleyin
- Tüm hesap şifrelerinizi güvenli bir cihazdan değiştirin
- Gerekirse Windows'u yeniden yükleyin ve verilerinizi temiz bir yedeğe geri alın
YARA Kuralı İpuçları
rule Ursnif_SHA256 {
meta:
description = "Ursnif sample: e6be3067bab6117f"
threat_level = "high"
first_seen = "2023-10-13"
condition:
hash.sha256(0, filesize) == "e6be3067bab6117f01d9fdf49cff95cac4d0a0e523fd9ce2d78dc01b5bf3a5d6"
}Ursnif — Malware Profile
Ursnif/Gozi ISFB banking trojan 2007. magic.js 1 string max obfuski. kpmg/thelancet camouflage. Discord CDN. Man-in-browser.
Technical Details
Ursnif (Gozi/ISFB) is one of the oldest banking trojans, active since 2007. Source code leaked 2010 and 2015 spawning numerous variants: ISFB, RM3, LDR4. Man-in-the-browser attacks: form grabbing, video capture of banking sessions, web injections. C2 uses RSA-1024 encrypted HTTPS with domain generation algorithm (DGA) as fallback. RSA-2048 for config encryption, custom binary protocol. Anti-analysis: timing-based sandbox evasion, VMware/VirtualBox artifact detection. LDR4 variant (2022) dropped banking features to focus purely on ransomware delivery. Operated by TA544 (Narwhal Spider) in Italy, and by TA551 (Shathak) in Japan. Uses HTTPS for exfiltration with binary data format.
Attribution / Threat Actor
TA544 (Narwhal Spider), TA551 (Shathak), multiple operators
Capabilities & Behavior
IOC List (2 indicators)
# SHA256
e6be3067bab6117f01d9fdf49cff95cac4d0a0e523fd9ce2d78dc01b5bf3a5d6
# MD5
03d13fc962bac6b04dc309cb345d2942
| Type | Value | Note |
|---|---|---|
| sha256 | e6be3067bab6117f01d9fdf49cff95cac4d0a0e523fd9ce2d78dc01b5bf3a5d6 | Sample:Ursnif |
| md5 | 03d13fc962bac6b04dc309cb345d2942 | Sample:Ursnif |
C2 Servers (1 recorded servers for this family)
| Address | Type | Port | Protocol | Status | Country |
|---|---|---|---|---|---|
| 91.92.109.38 | ip | 8080 | HTTP | sinkholed | RU |
C2 addresses are provided only from malware samples manually verified by the KEYDAL team. Commercial use is prohibited.