Emerging Threathightest
Potential CVE-2021-44228 Exploitation Attempt - VMware Horizon
Detects potential initial exploitation attempts against VMware Horizon deployments running a vulnerable versions of Log4j.
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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:
selection:
ParentImage|endswith: '\ws_TomcatService.exe'
filter_main_shells:
Image|endswith:
- '\cmd.exe'
- '\powershell.exe'
condition: selection and not 1 of filter_main_*False Positives
Unlikely
False positives are unlikely for most environments. High confidence detection.
MITRE ATT&CK
Tactics
Other
cve.2021-44228detection.emerging-threats
Rule Metadata
Rule ID
3eb91f0a-0060-424a-a676-59f5fdd75610
Status
test
Level
high
Type
Emerging Threat
Created
Fri Jan 14
Author
Path
rules-emerging-threats/2021/Exploits/CVE-2021-44228/proc_creation_win_exploit_cve_2021_44228_vmware_horizon_log4j.yml
Raw Tags
attack.initial-accessattack.t1190cve.2021-44228detection.emerging-threats