DCRat | Threat Level: high | Type: RAT
Cryptographic Identifiers
| SHA256 | c43c36331895be9c8dbc41b1993144c13953b10399423b013587bd7c5afe4279 |
|---|---|
| MD5 | 240068633e980e781ef4a3903c423c87 |
| File Type | exe |
| Size | 1837.0 KB |
| First Seen | 2025-05-18 |
| File Name | 240068633e980e781ef4a3903c423c87.exe |
| Tags | DCRat, exe, RAT |
Malware Family: DCRat
DCRat, modüler RAT'tır.
| Type | RAT |
|---|---|
| Programming Language | C#/.NET |
| Target Platform | Windows |
| C2 Protocol | HTTP |
| Purpose | Plugin tabanlı RAT |
| First Seen Year | 2019 |
| Aliases | DarkCrystal |
Threat Indicators (IOC)
- SHA256:
c43c36331895be9c8dbc41b1993144c13953b10399423b013587bd7c5afe4279 - MD5:
240068633e980e781ef4a3903c423c87
You can verify all hash values of this sample on VirusTotal.
System Cleanup Guide
- Disconnect the system from the network — unplug ethernet, disable Wi-Fi
- Terminate suspicious processes from Task Manager
- Run a full system scan with Malwarebytes or Kaspersky
- HKCU\Software\Microsoft\Windows\CurrentVersion\Run kayıtlarını kontrol edin
- Review newly created tasks in Task Scheduler
- Change all your account passwords from a clean device
- Gerekirse Windows'u yeniden yükleyin ve verilerinizi temiz bir yedeğe geri alın
YARA Rule Hints
rule DCRat_SHA256 {
meta:
description = "DCRat sample: c43c36331895be9c"
threat_level = "high"
first_seen = "2025-05-18"
condition:
hash.sha256(0, filesize) == "c43c36331895be9c8dbc41b1993144c13953b10399423b013587bd7c5afe4279"
}
DCRat — Malware Profile
DCRat Rusça RAT. sostener1.vbs VBScript dropper. PowerShell ExecutionPolicy Bypass. geutqmonpmjthuux.ru DGA C2.
Malware Type
RAT
Programming Language
C#/.NET
C2 Protocol
HTTP
Target Systems
Windows
Also Known As (AKA)
DarkCrystal
Technical Details
.NET C#, AES-128-CBC sifreleme, plugin mimarisi (DLLler), TCP varsayilan port 5552, SQLite lokal depolama, Anti-VM/Sandbox (Process check, Registry), Loader, Stealer, RAT modulleri ayri
Capabilities & Behavior
Uzaktan Erişim & Kontrol
Keylogger
Ekran Görüntüsü
Webcam Erişimi
Dosya Yönetimi
Süreç Yönetimi
Komut Yürütme
Kalıcılık Mekanizması
IOC List (2 indicators)
IOC — DCRat
# SHA256
c43c36331895be9c8dbc41b1993144c13953b10399423b013587bd7c5afe4279
# MD5
240068633e980e781ef4a3903c423c87
| Type | Value | Note |
|---|---|---|
| sha256 | c43c36331895be9c8dbc41b1993144c13953b10399423b013587bd7c5afe4279 | Sample:DCRat |
| md5 | 240068633e980e781ef4a3903c423c87 | Sample:DCRat |
C2 Servers (8 recorded servers for this family)
| Address | Type | Port | Protocol | Status | Country |
|---|---|---|---|---|---|
| microsoft.com | domain | — | TCP | active | — |
| digicert.com | domain | — | TCP | active | — |
| crypto.io | domain | — | TCP | active | — |
| microsoft.com | domain | — | TCP | active | — |
| microsoft.com | domain | — | TCP | active | — |
| microsoft.com | domain | — | TCP | active | — |
| microsoft.com | domain | — | TCP | active | — |
| microsoft.com | domain | — | TCP | active | — |
C2 addresses are provided only from malware samples manually verified by the KEYDAL team. Commercial use is prohibited.