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Medium CINC-20251221-2C17A0D3 new

Aggregate ID: aggind:024efd237c2d4f87958607652cb04c8b:17468177915

Incident Overview

Incident ID CINC-20251221-2C17A0D3
Severity Medium (70)
Status new
Alert Count 9
Host Count 1

Timeline

First Seen 2025-12-22 04:59:29
Last Seen 2025-12-22 05:00:29
Duration 0d 0h 0m
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:
AI Powered IOA Execution Lateral Movement Defense Evasion
Techniques:
Command and Scripting Interpreter User Execution Remote Desktop Protocol CMSTP PowerShell

Affected Hosts (1)

BOOK-R0BE6S1NC3

Related Alerts (9)

Severity Status Hostname Description Tactic Command Line Time
High new BOOK-R0BE6S1NC3 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 05:00
Informational new BOOK-R0BE6S1NC3 A process has written a known EICAR test file. Review the files written by the triggered process. Execution "C:\app\cortex-xdr-siem-test\.venv\Scripts\python.exe" mega_incident_generator.py --rounds 2 --interval 30 12-22 05:00
High new BOOK-R0BE6S1NC3 A command line indicates an attempt to hijack a remote desktop protocol session. Review the process tree. Lateral Movement C:\windows\system32\cmd.exe /c "tscon 1 /dest:rdp-tcp#0" 12-22 05:00
High new BOOK-R0BE6S1NC3 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\ubuntu\AppData\Local\Temp\test.inf 12-22 05:00
High new BOOK-R0BE6S1NC3 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 05:00
High new BOOK-R0BE6S1NC3 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 05:00
High new BOOK-R0BE6S1NC3 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 05:00
High new BOOK-R0BE6S1NC3 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 05:00
Informational new BOOK-R0BE6S1NC3 A process has written a known EICAR test file. Review the files written by the triggered process. Execution "C:\app\cortex-xdr-siem-test\.venv\Scripts\python.exe" mega_incident_generator.py --rounds 2 --interval 30 12-22 04:59