Emerging Threathighexperimental
Lummac Stealer Activity - Execution Of More.com And Vbc.exe
Detects the execution of more.com and vbc.exe in the process tree. This behavior was observed by a set of samples related to Lummac Stealer. The Lummac payload is injected into the vbc.exe process.
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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 Logic2 selectors
detection:
# VT Query: behaviour_processes:"C:\\Windows\\SysWOW64\\more.com" behaviour_processes:"C:\\Windows\\Microsoft.NET\\Framework\\v4.0.30319\\vbc.exe"
selection_parent:
ParentImage|endswith: '\more.com'
selection_child:
- Image|endswith: '\vbc.exe'
- OriginalFileName: 'vbc.exe'
condition: all of selection_*False Positives
Unknown
False positive likelihood has not been assessed. Additional context may be needed during triage.
MITRE ATT&CK
Techniques
Other
detection.emerging-threats
Rule Metadata
Rule ID
19b3806e-46f2-4b4c-9337-e3d8653245ea
Status
experimental
Level
high
Type
Emerging Threat
Created
Thu Dec 19
Author
Path
rules-emerging-threats/2024/Malware/Lummac-Stealer/proc_creation_win_malware_lummac_more_vbc.yml
Raw Tags
attack.privilege-escalationattack.defense-evasionattack.t1055detection.emerging-threats