Detection rules › Sigma
Lace Tempest Malware Loader Execution
Detects execution of a specific binary based on filename and hash used by Lace Tempest to load additional malware as reported by SysAid Team
Event coverage
| Provider | Event | Title |
|---|---|---|
| Sysmon | Event ID 1 | Process creation |
Rule body yaml
title: Lace Tempest Malware Loader Execution
id: 745ea50b-9673-4ba7-9426-cb45cf4a8e6d
status: test
description: Detects execution of a specific binary based on filename and hash used by Lace Tempest to load additional malware as reported by SysAid Team
references:
- https://www.sysaid.com/blog/service-desk/on-premise-software-security-vulnerability-notification
author: Nasreddine Bencherchali (Nextron Systems)
date: 2023-11-09
tags:
- attack.execution
- detection.emerging-threats
logsource:
category: process_creation
product: windows
detection:
selection_img:
Image|endswith: ':\Program Files\SysAidServer\tomcat\webapps\usersfiles\user.exe'
selection_hash:
Hashes|contains: 'SHA256=B5ACF14CDAC40BE590318DEE95425D0746E85B1B7B1CBD14DA66F21F2522BF4D'
condition: 1 of selection_*
falsepositives:
- Unlikely
level: high
Stages and Predicates
Stage 0: condition
1 of selection_*Stage 1: selection_img
selection_img:
Image|endswith: ':\Program Files\SysAidServer\tomcat\webapps\usersfiles\user.exe'
Stage 2: selection_hash
selection_hash:
Hashes|contains: 'SHA256=B5ACF14CDAC40BE590318DEE95425D0746E85B1B7B1CBD14DA66F21F2522BF4D'
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.