Grandoreiro — Örnek SHA256: 23fb71fa | High Tehdit Analizi

Cryptographic Identifiers

Malware Family: Grandoreiro

Grandoreiro, LA bankacılık trojanıdır.

Threat Indicators (IOC)

• SHA256: 23fb71fa072092de2c14bad7aa6fc7e203c694823eda5c2ffaa6fd11c193d967
• MD5: 4bc2d51a5e423bc6e8b855306ade698c

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: 23fb71fa072092de"
        threat_level = "high"
        first_seen = "2022-02-21"
    condition:
        hash.sha256(0, filesize) == "23fb71fa072092de2c14bad7aa6fc7e203c694823eda5c2ffaa6fd11c193d967"
}