Emerging Threatmediumtest
Rhadamanthys Stealer Module Launch Via Rundll32.EXE
Detects the use of Rundll32 to launch an NSIS module that serves as the main stealer capability of Rhadamanthys infostealer, as observed in reports and samples in early 2023
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Launch
Emerging Threat
Active Threat
Developed to detect an active or emerging threat. Prioritize investigation of any alerts and correlate with threat intelligence.
Log Source
WindowsProcess Creation
ProductWindows← raw: windows
CategoryProcess Creation← raw: process_creation
Events generated when a new process is spawned on the system. Covers command-line arguments, parent/child relationships, and process metadata.
Detection Logic
Detection Logic3 selectors
detection:
selection_rundll32:
- OriginalFileName: 'RUNDLL32.EXE'
- Image|endswith: '\rundll32.exe'
selection_dll:
CommandLine|contains: 'nsis_uns'
selection_export_function:
CommandLine|contains: 'PrintUIEntry'
condition: all of selection_*False Positives
Unknown
False positive likelihood has not been assessed. Additional context may be needed during triage.
MITRE ATT&CK
Rule Metadata
Rule ID
5cdbc2e8-86dd-43df-9a1a-200d4745fba5
Status
test
Level
medium
Type
Emerging Threat
Created
Thu Jan 26
Modified
Sun Feb 05
Author
Path
rules-emerging-threats/2023/Malware/Rhadamanthys/proc_creation_win_malware_rhadamanthys_stealer_dll_launch.yml
Raw Tags
attack.defense-evasionattack.t1218.011detection.emerging-threats