Emerging Threathightest
Potential CVE-2023-36874 Exploitation - Fake Wermgr Execution
Detects the execution of a renamed "cmd", "powershell" or "powershell_ise" binary. Attackers were seen using these binaries in a renamed form as "wermgr.exe" in exploitation of CVE-2023-36874
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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 Logic1 selector
detection:
selection:
OriginalFileName:
- 'Cmd.Exe'
- 'powershell_ise.EXE'
- 'powershell.exe'
Image|endswith: '\wermgr.exe'
condition: selectionFalse Positives
Unlikely
False positives are unlikely for most environments. High confidence detection.
MITRE ATT&CK
Tactics
Other
cve.2023-36874detection.emerging-threats
Rule Metadata
Rule ID
50dbc08b-60ce-40f1-a6b6-346497e34c88
Status
test
Level
high
Type
Emerging Threat
Created
Wed Aug 23
Path
rules-emerging-threats/2023/Exploits/CVE-2023-36874/proc_creation_win_exploit_cve_2023_36874_fake_wermgr.yml
Raw Tags
attack.executioncve.2023-36874detection.emerging-threats