Potentially Suspicious Command Targeting Teams Sensitive Files

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About the rule

Rule Type

Standard

Rule Description

Detects a commandline containing references to the Microsoft Teams database or cookies files from a process other than Teams. The database might contain authentication tokens and other sensitive information about the logged in accounts.

Severity

Trouble

Rule Requirement

Criteria

Action1: actionname = "Process started" AND COMMANDLINE contains "\Microsoft\Teams\Cookies,\Microsoft\Teams\Local Storage\leveldb" AND PROCESSNAME notendswith "\Microsoft\Teams\current\Teams.exe" select Action1.HOSTNAME,Action1.MESSAGE,Action1.COMMANDLINE,Action1.FILE_NAME,Action1.PROCESSNAME,Action1.USERNAME,Action1.PARENTPROCESSNAME

Detection

Execution Mode

realtime

Log Sources

Windows

Author

@SerkinValery