Detection rules › Sigma
ISO File Created Within Temp Folders
Detects the creation of a ISO file in the Outlook temp folder or in the Appdata temp folder. Typical of Qakbot TTP from end-July 2022.
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Initial Access | T1566.001 Phishing: Spearphishing Attachment |
Event coverage
| Provider | Event ID | Title |
|---|---|---|
| Sysmon | 11 | FileCreate |
Stages and Predicates
Stage 1: 1 of selection_1
TargetFilename|endswith: .iso
TargetFilename|contains: '.zip\'
TargetFilename|contains: '\AppData\Local\Temp\'
Stage 2: 1 of selection_2
TargetFilename|endswith: .iso
TargetFilename|contains: '\AppData\Local\Microsoft\Windows\INetCache\Content.Outlook\'
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 |
|---|---|---|
TargetFilename | ends_with |
|
TargetFilename | match |
|