Operator Bloopers Cobalt Strike Modules

Severity: high
Author: _pete_0, TheDFIRReport
Source: upstream

Detects Cobalt Strike module/commands accidentally entered in CMD shell

MITRE ATT&CK coverage

Tactic	Techniques
Execution	`T1059.003` Command and Scripting Interpreter: Windows Command Shell

Event coverage

Provider	Event ID	Title
Sysmon	1	Process creation

Stages and Predicates

Stage 1: `all of selection_img`

or:
Image|endswith: '\cmd.exe'
OriginalFileName: Cmd.Exe

Stage 2: `all of selection_cli`

or:
CommandLine|contains: Invoke-Kerberoast
CommandLine|contains: Invoke-Nightmare
CommandLine|contains: Invoke-SMBAutoBrute
CommandLine|contains: Invoke-ShareFinder
CommandLine|contains: Invoke-UserHunter
CommandLine|contains: av_query
CommandLine|contains: zerologon

Indicators

Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.

Field	Kind	Values
`CommandLine`	match	`Invoke-Kerberoast` corpus 2 (sigma 2) `Invoke-Nightmare` corpus 2 (sigma 2) `Invoke-SMBAutoBrute` `Invoke-ShareFinder` `Invoke-UserHunter` corpus 2 (sigma 2) `av_query` `zerologon`
`Image`	ends_with	`\cmd.exe` corpus 92 (sigma 92)
`OriginalFileName`	eq	`Cmd.Exe` corpus 32 (sigma 30, splunk 2)