STRRAT (also known as STRRAT) is a Java-based remote access trojan active since 2020. Java-based RAT with fake ransomware. Key capabilities include: credential theft, keylogging, fake ransomware extension renaming, Java-based delivery.
Overview & Background
Java-based RAT with fake ransomware. First observed in 2020, STRRAT is attributed to eCrime. The malware is written in Java and provides operators with comprehensive remote access capabilities.
STRRAT continues to be actively distributed and used in campaigns targeting organizations worldwide. Its capabilities include: credential theft, keylogging, fake ransomware extension renaming, Java-based delivery.
- Language: Java
- Active since: 2020
- Attribution: eCrime
- Also known as: STRRAT
Technical Capabilities
- Credential Theft: Core STRRAT capability T1059
- Keylogging: Core STRRAT capability T1059
- Fake Ransomware Extension Renaming: Core STRRAT capability T1059
- Java-Based Delivery: Core STRRAT capability T1059
Distribution Methods
STRRAT is typically distributed through phishing emails with malicious attachments, cracked software downloads, and malvertising campaigns. Common delivery mechanisms include Office macros, ISO/IMG containers, and script-based downloaders.
- Phishing emails: Malicious attachments and links T1566.001
- Malvertising: SEO poisoning and malicious ads T1189
- Cracked software: Bundled with pirated applications
MITRE ATT&CK Mapping
| Tactic | Technique | Usage |
|---|---|---|
| Initial Access | T1566.001 Phishing Attachment | Malicious email attachments |
| Execution | T1204.002 Malicious File | User executes RAT payload |
| Persistence | T1547.001 Registry Run Keys | Autostart persistence |
| Defense Evasion | T1027 Obfuscated Files | Payload obfuscation |
| Credential Access | T1056.001 Keylogging | Keystroke capture |
| Collection | T1113 Screen Capture | Screenshot collection |
| Collection | T1125 Video Capture | Webcam access |
| C2 | T1071.001 Web Protocols | HTTP/HTTPS C2 communication |
Detection & Defense
- Endpoint detection: Monitor for Java processes with network connections from unusual locations
- Network monitoring: Detect C2 traffic patterns associated with STRRAT
- Email security: Block malicious attachments and links in phishing campaigns
- Application whitelisting: Restrict execution of unauthorized binaries
- YARA rules: Deploy detection signatures for known STRRAT variants
Protect Against Remote Access Trojans
Mjolnir Security provides comprehensive detection and response capabilities against STRRAT and similar RAT threats.
- RAT Detection & Removal Identify and remediate STRRAT infections including persistence mechanisms and lateral movement artifacts.
- Threat Intelligence Continuous monitoring for STRRAT campaigns and infrastructure targeting your organization.
- 24/7 Incident Response Rapid containment and forensic investigation. Call +1 833 403 5875.
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