Vobfus Worm (also known as Vobfus, Changeup) is a malware active since 2009. USB propagation worm. Key characteristics include: USB propagation, autorun exploitation, downloads additional malware, polymorphic.
Overview & Background
USB propagation worm. First identified in 2009, this threat is attributed to eCrime.
Threat Assessment
Vobfus Worm remains an active threat. Organizations should implement detection rules and monitor for indicators associated with this malware.
- Category: Malware
- Active since: 2009
- Attribution: eCrime
- Also known as: Vobfus, Changeup
Technical Analysis
Vobfus Worm employs the following capabilities and techniques:
- Usb Propagation: Core functionality
- Autorun Exploitation: Core functionality
- Downloads Additional Malware: Core functionality
- Polymorphic: 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 Vobfus Worm indicators
- Network monitoring: Monitor for C2 traffic patterns and anomalous connections
- Threat intelligence: Track Vobfus Worm IOCs and campaign updates
- Security awareness: Train users to recognize phishing and social engineering
- Patch management: Keep systems updated to prevent exploitation
Defend Against Vobfus Worm
Mjolnir Security provides detection and response capabilities against Vobfus Worm and similar threats.
Threat DetectionIncident ResponseThreat HuntingMDR ServicesThreat Intelligence
- Proactive Threat Hunting Hunt for Vobfus Worm indicators and TTPs within your environment.
- Threat Intelligence Monitor Vobfus Worm campaigns and infrastructure changes.
- 24/7 Incident Response Rapid containment and forensic investigation. Call +1 833 403 5875.
Written by: Mjolnir Security | Published: March 15, 2025
Stay ahead of emerging threats. Get notified when we publish new intelligence reports and advisories.
Subscribe to Alerts