Renamed CreateDump Utility Execution

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

Detects uses of a renamed legitimate createdump.exe LOLOBIN utility to dump process memory

MITRE ATT&CK coverage

Tactic	Techniques
Defense Evasion	`T1036` Masquerading
Credential Access	`T1003.001` OS Credential Dumping: LSASS Memory

Event coverage

Provider	Event ID	Title
Sysmon	1	Process creation

Stages and Predicates

Stage 1: `1 of selection_pe`

OriginalFileName: FX_VER_INTERNALNAME_STR

Stage 2: `1 of selection_cli`

or:
CommandLine|contains: ' --full '
CommandLine|contains: ' --name '
CommandLine|contains: .dmp
CommandLine|contains: ' -f '
CommandLine|contains: ' -u '
CommandLine|contains: .dmp

Stage 3: `not filter`

Image|endswith: '\createdump.exe'

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	`--full` corpus 2 (sigma 2) `--name` corpus 2 (sigma 2) `-f` corpus 5 (sigma 5) `-u` corpus 4 (sigma 4) `.dmp` corpus 6 (sigma 6)
`Image`	ends_with	`\createdump.exe` corpus 2 (sigma 2)
`OriginalFileName`	eq	`FX_VER_INTERNALNAME_STR` corpus 2 (sigma 2)