Detection rules › Sigma
Suspicious Remote Logon with Explicit Credentials
Detects suspicious processes logging on with explicit credentials
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Initial Access | T1078 Valid Accounts |
| Persistence | T1078 Valid Accounts |
| Privilege Escalation | T1078 Valid Accounts |
| Defense Evasion | T1078 Valid Accounts |
Event coverage
| Provider | Event ID | Title |
|---|---|---|
| Security-Auditing | 4648 | A logon was attempted using explicit credentials. |
Stages and Predicates
Stage 1: selection
or:
ProcessName|endswith: '\cmd.exe'
ProcessName|endswith: '\net.exe'
ProcessName|endswith: '\net1.exe'
ProcessName|endswith: '\powershell.exe'
ProcessName|endswith: '\pwsh.exe'
ProcessName|endswith: '\reg.exe'
ProcessName|endswith: '\winrs.exe'
ProcessName|endswith: '\wmic.exe'
Stage 2: not 1 of filter*
or:
SubjectUserName|endswith: '$'
TargetUserName|endswith: '$'
TargetServerName: localhost
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 |
|---|---|---|
ProcessName | ends_with |
|
SubjectUserName | ends_with |
|
TargetServerName | eq |
|
TargetUserName | ends_with |
|