Detection rules › Kusto Query Language

Probable AdFind Recon Tool Usage (Normalized Process Events)

Author: Yuval Naor
Source: upstream

'Identifies the host and account that executed AdFind by hash and filename in addition to common and unique flags that are used by many threat actors in discovery. To use this analytics rule, make sure you have deployed the ASIM normalization parsers'

MITRE ATT&CK coverage

Tactic	Techniques
Discovery	`T1018` Remote System Discovery

Event coverage

Provider	Event ID	Title
Sysmon	1	Process creation
Sysmon	5	Process terminated
Security-Auditing	4688	A new process has been created.
Security-Auditing	4689	A process has exited.

Stages and Predicates

Stage 1: `source`

imProcessCreate

Stage 2: `where`

ActingProcessName match "parentProcesses"

Stage 3: `extend`

Stage 4: `where`

ActingProcessFileName eq "parentProcesses"

Stage 5: `where`

or
  CommandLine match "args"
  Process ends_with "AdFind.exe"
  TargetProcessSHA256 eq "c92c158d7c37fea795114fa6491fe5f145ad2f8c08776b18ae79db811e8e36a3"

Stage 6: `extend`

Stage 7: `extend`

Stage 8: `extend`

Stage 9: `extend`

Stage 10: `project-away`

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
`ActingProcessFileName`	in	`parentProcesses`
`ActingProcessName`	match	`parentProcesses`
`CommandLine`	match	`args`
`Process`	ends_with	`AdFind.exe`
`TargetProcessSHA256`	eq	`c92c158d7c37fea795114fa6491fe5f145ad2f8c08776b18ae79db811e8e36a3`

Probable AdFind Recon Tool Usage (Normalized Process Events)

MITRE ATT&CK coverage

Event coverage

Stages and Predicates

Stage 1: source

Stage 2: where

Stage 3: extend

Stage 4: where

Stage 5: where

Stage 6: extend

Stage 7: extend

Stage 8: extend

Stage 9: extend

Stage 10: project-away