MpiExec Lolbin

Severity: high
Author: Florian Roth (Nextron Systems)
Source: upstream

Detects a certain command line flag combination used by mpiexec.exe LOLBIN from HPC pack that can be used to execute any other binary

MITRE ATT&CK coverage

Tactic	Techniques
Defense Evasion	`T1218` System Binary Proxy Execution

Event coverage

Provider	Event ID	Title
Sysmon	1	Process creation

Stages and Predicates

Stage 1: `all of selection_binary`

or:
Hashes|contains: 'IMPHASH=d8b52ef6aaa3a81501bdfff9dbb96217'
Image|endswith: '\mpiexec.exe'

Stage 2: `all of selection_flags`

or:
CommandLine|contains: ' -n 1 '
CommandLine|contains: ' /n 1 '

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	`-n 1` `/n 1`
`Hashes`	match	`IMPHASH=d8b52ef6aaa3a81501bdfff9dbb96217`
`Image`	ends_with	`\mpiexec.exe`