Detection rules › Equivalence class

eq_0005 — 2 rules with the same canonical form

Vendors: sigma (2). Stage count: 5. Correlation shape: single_event.

Members

MITRE ATT&CK coverage

TacticTechniques
ExecutionT1053.005 Scheduled Task/Job: Scheduled Task, T1059.001 Command and Scripting Interpreter: PowerShell
PersistenceT1053.005 Scheduled Task/Job: Scheduled Task
Privilege EscalationT1053.005 Scheduled Task/Job: Scheduled Task

Stages and predicates (per member)

Each member's stage rendered in its own native syntax (verbatim source where the IR captures it; falls back to the synthesised native form for the few stage types whose source segments aren't recoverable).

Scheduled Task Executing Payload from Registry — stage 1 all of selection_img

or:
Image|endswith: '\schtasks.exe'
OriginalFileName: schtasks.exe

Scheduled Task Executing Payload from Registry — stage 2 all of selection_cli_create

CommandLine|contains: '/Create'

Scheduled Task Executing Payload from Registry — stage 3 all of selection_cli_get

or:
CommandLine|contains: ' gp '
CommandLine|contains: Get-ItemProperty

Scheduled Task Executing Payload from Registry — stage 4 all of selection_cli_hive

or:
CommandLine|contains: 'HKCU:'
CommandLine|contains: HKEY_
CommandLine|contains: 'HKLM:'
CommandLine|contains: 'registry::'

Scheduled Task Executing Payload from Registry — stage 5 not 1 of filter_main_encoding

or:
CommandLine|contains: FromBase64String
CommandLine|contains: encodedcommand

Scheduled Task Executing Encoded Payload from Registry — stage 6 all of selection_img

or:
Image|endswith: '\schtasks.exe'
OriginalFileName: schtasks.exe

Scheduled Task Executing Encoded Payload from Registry — stage 7 all of selection_cli_create

CommandLine|contains: '/Create'

Scheduled Task Executing Encoded Payload from Registry — stage 8 all of selection_cli_encoding

or:
CommandLine|contains: FromBase64String
CommandLine|contains: encodedcommand

Scheduled Task Executing Encoded Payload from Registry — stage 9 all of selection_cli_get

or:
CommandLine|contains: ' gp '
CommandLine|contains: Get-ItemProperty

Scheduled Task Executing Encoded Payload from Registry — stage 10 all of selection_cli_hive

or:
CommandLine|contains: 'HKCU:'
CommandLine|contains: HKEY_
CommandLine|contains: 'HKLM:'
CommandLine|contains: 'registry::'

Indicators (across all members)

FieldKindValueMembersCorpus
CommandLinematch gp 22
CommandLinematch/Create24
CommandLinematchFromBase64String27
CommandLinematchGet-ItemProperty22
CommandLinematchHKCU:22
CommandLinematchHKEY_22
CommandLinematchHKLM:22
CommandLinematchencodedcommand22
CommandLinematchregistry::22
Imageends_with\schtasks.exe245
OriginalFileNameeqschtasks.exe214