Grandoreiro — Örnek SHA256: 55ca273b | High Tehdit Analizi

Cryptographic Identifiers

Malware Family: Grandoreiro

Grandoreiro, LA bankacılık trojanıdır.

Threat Indicators (IOC)

• SHA256: 55ca273bf110af872d9c0b174df10d8ee521d99a6ec222a9e40c4f4602f3ca83
• MD5: 796323f817695ad20d9c3907f042b8f0

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 Grandoreiro_SHA256 {
    meta:
        description = "Grandoreiro sample: 55ca273bf110af87"
        threat_level = "high"
        first_seen = "2022-04-09"
    condition:
        hash.sha256(0, filesize) == "55ca273bf110af872d9c0b174df10d8ee521d99a6ec222a9e40c4f4602f3ca83"
}