ISO File Created Within Temp Folders
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About the rule
Rule Type
Standard
Rule Description
Detects the creation of a ISO file in the Outlook temp folder or in the Appdata temp folder. Typical of Qakbot TTP from end-July 2022.
Severity
Trouble
Rule Requirement
Criteria
Action1: actionname = "File Created or Modified" AND (((FILENAME contains "\AppData\Local\Temp" AND FILENAME contains ".zip") OR (OBJECTNAME contains "\AppData\Local\Temp" AND OBJECTNAME contains ".zip")) AND (FILENAME endswith ".iso" OR OBJECTNAME endswith ".iso")) OR ((FILENAME contains "\AppData\Local\Microsoft\Windows\INetCache\Content.Outlook" OR OBJECTNAME contains "\AppData\Local\Microsoft\Windows\INetCache\Content.Outlook") AND (FILENAME endswith ".iso" OR OBJECTNAME endswith ".iso")) select Action1.HOSTNAME,Action1.MESSAGE,Action1.USERNAME,Action1.DOMAIN,Action1.OBJECTNAME,Action1.FILENAME,Action1.PROCESSNAME
Detection
Execution Mode
realtime
Log Sources
Windows
Author
@sam0x90
