Detection rules › Sigma
Bad Opsec Powershell Code Artifacts
focuses on trivial artifacts observed in variants of prevalent offensive ps1 payloads, including Cobalt Strike Beacon, PoshC2, Powerview, Letmein, Empire, Powersploit, and other attack payloads that often undergo minimal changes by attackers due to bad opsec.
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Execution | T1059.001 Command and Scripting Interpreter: PowerShell |
Event coverage
| Provider | Event ID | Title |
|---|---|---|
| PowerShell | 4103 | Payload Context: ContextInfo User Data: UserData. |
Stages and Predicates
Stage 1: selection_4103
or:
Payload|contains: '$DoIt'
Payload|contains: 0xdeadbeef
Payload|contains: _RastaMouse
Payload|contains: harmj0y
Payload|contains: mattifestation
Payload|contains: tifkin_
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 |
|---|---|---|
Payload | match |
|