Detection rules › Sigma
Potential LSASS Process Dump Via Procdump
Detects potential credential harvesting attempts through LSASS memory dumps using ProcDump. This rule identifies suspicious command-line patterns that combine memory dump flags (-ma, -mm, -mp) with LSASS-related process markers. LSASS (Local Security Authority Subsystem Service) contains sensitive authentication data including plaintext passwords, NTLM hashes, and Kerberos tickets in memory. Attackers commonly dump LSASS memory to extract credentials for lateral movement and privilege escalation.
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 |
| Security-Auditing | 4688 | A new process has been created. |
Stages and Predicates
Stage 1: all of selection_flags
or:
CommandLine|contains: ' -ma '
CommandLine|contains: ' -mm '
CommandLine|contains: ' -mp '
Stage 2: all of selection_process
or:
CommandLine|contains: ' keyiso'
CommandLine|contains: ' ls'
CommandLine|contains: ' samss'
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 |
|