Skuggaheimar/Threat Intelligence/PlugX
PLUGX
PLUGX
MALWARE
CHINESE APTS
Threat IntelligenceMalwareApril 1, 2025•15 min read

PlugX: Threat Intelligence Profile

Chinese APT backdoor

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PlugX / Korplug (also known as PlugX, Korplug, Destroy RAT, THOR) is a malware active since 2012. Chinese APT backdoor. Key characteristics include: DLL side-loading, modular plugins, USB propagation, used by 10+ Chinese APT groups, FBI remediation 2025.

Overview & Background

Chinese APT backdoor. First identified in 2012, this threat is attributed to Chinese APTs.

Threat Assessment

PlugX remains an active threat. Organizations should implement detection rules and monitor for indicators associated with this malware.

Technical Analysis

PlugX employs the following capabilities and techniques:

MITRE ATT&CK Mapping

TacticTechniqueUsage
Initial AccessT1566.001 Phishing AttachmentCommon delivery vector
ExecutionT1204.002 Malicious FileUser-triggered execution
PersistenceT1547.001 Registry Run KeysAutostart persistence
Defense EvasionT1027 Obfuscated FilesPayload obfuscation
C2T1071.001 Web ProtocolsHTTP/HTTPS C2

Detection & Defense

Defend Against PlugX

Mjolnir Security provides detection and response capabilities against PlugX and similar threats.

Threat DetectionIncident ResponseThreat HuntingMDR ServicesThreat Intelligence
  • Proactive Threat Hunting Hunt for PlugX indicators and TTPs within your environment.
  • Threat Intelligence Monitor PlugX campaigns and infrastructure changes.
  • 24/7 Incident Response Rapid containment and forensic investigation. Call +1 833 403 5875.
Written by: Mjolnir Security  |  Published: April 1, 2025
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