Detection rules › Sigma
Remotely Hosted HTA File Executed Via Mshta.EXE
Detects execution of the "mshta" utility with an argument containing the "http" keyword, which could indicate that an attacker is executing a remotely hosted malicious hta file
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Defense Evasion | T1218.005 System Binary Proxy Execution: Mshta |
Event coverage
| Provider | Event ID | Title |
|---|---|---|
| Sysmon | 1 | Process creation |
Stages and Predicates
Stage 1: all of selection_img
or:
Image|endswith: '\mshta.exe'
OriginalFileName: MSHTA.EXE
Stage 2: all of selection_cli
or:
CommandLine|contains: 'ftp://'
CommandLine|contains: 'http://'
CommandLine|contains: 'https://'
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 |
|
Image | ends_with |
|
OriginalFileName | eq |
|