QDoor Backdoor (also known as QDoor) is a malware active since 2024. Proxy backdoor. Key characteristics include: SOCKS proxy, network tunneling, lateral movement enabler, Black Basta associated.
Overview & Background
Proxy backdoor. First identified in 2024, this threat is attributed to eCrime.
Threat Assessment
QDoor Backdoor remains an active threat. Organizations should implement detection rules and monitor for indicators associated with this malware.
- Category: Malware
- Active since: 2024
- Attribution: eCrime
- Also known as: QDoor
Technical Analysis
QDoor Backdoor employs the following capabilities and techniques:
- Socks Proxy: Core functionality
- Network Tunneling: Core functionality
- Lateral Movement Enabler: Core functionality
- Black Basta Associated: Core functionality
MITRE ATT&CK Mapping
| Tactic | Technique | Usage |
|---|---|---|
| Initial Access | T1566.001 Phishing Attachment | Common delivery vector |
| Execution | T1204.002 Malicious File | User-triggered execution |
| Persistence | T1547.001 Registry Run Keys | Autostart persistence |
| Defense Evasion | T1027 Obfuscated Files | Payload obfuscation |
| C2 | T1071.001 Web Protocols | HTTP/HTTPS C2 |
Detection & Defense
- Endpoint detection: Deploy behavioral detection rules for QDoor Backdoor indicators
- Network monitoring: Monitor for C2 traffic patterns and anomalous connections
- Threat intelligence: Track QDoor Backdoor IOCs and campaign updates
- Security awareness: Train users to recognize phishing and social engineering
- Patch management: Keep systems updated to prevent exploitation
Defend Against QDoor Backdoor
Mjolnir Security provides detection and response capabilities against QDoor Backdoor and similar threats.
Threat DetectionIncident ResponseThreat HuntingMDR ServicesThreat Intelligence
- Proactive Threat Hunting Hunt for QDoor Backdoor indicators and TTPs within your environment.
- Threat Intelligence Monitor QDoor Backdoor campaigns and infrastructure changes.
- 24/7 Incident Response Rapid containment and forensic investigation. Call +1 833 403 5875.
Written by: Mjolnir Security | Published: March 27, 2025
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