Windows Installer with Suspicious Properties
editWindows Installer with Suspicious Properties
editIdentifies the execution of an installer from an archive or with suspicious properties. Adversaries may abuse msiexec.exe to launch local or network accessible MSI files in an attempt to bypass application whitelisting.
Rule type: eql
Rule indices:
- logs-endpoint.events.*
Severity: low
Risk score: 21
Runs every: 60m
Searches indices from: now-119m (Date Math format, see also Additional look-back time
)
Maximum alerts per execution: 100
References:
Tags:
- Domain: Endpoint
- OS: Windows
- Use Case: Threat Detection
- Tactic: Defense Evasion
- Rule Type: BBR
- Data Source: Elastic Defend
Version: 2
Rule authors:
- Elastic
Rule license: Elastic License v2
Rule query
editsequence with maxspan=1m [registry where host.os.type == "windows" and event.type == "change" and process.name : "msiexec.exe" and ( (registry.value : "InstallSource" and registry.data.strings : ("?:\\Users\\*\\Temp\\Temp?_*.zip\\*", "?:\\Users\\*\\*.7z\\*", "?:\\Users\\*\\*.rar\\*")) or (registry.value : ("DisplayName", "ProductName") and registry.data.strings : "SetupTest") )] [process where host.os.type == "windows" and event.action == "start" and process.parent.name : "msiexec.exe" and not process.name : "msiexec.exe" and not (process.executable : ("?:\\Program Files (x86)\\*.exe", "?:\\Program Files\\*.exe") and process.code_signature.trusted == true)]
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Defense Evasion
- ID: TA0005
- Reference URL: https://attack.mitre.org/tactics/TA0005/
-
Technique:
- Name: System Binary Proxy Execution
- ID: T1218
- Reference URL: https://attack.mitre.org/techniques/T1218/
-
Sub-technique:
- Name: Msiexec
- ID: T1218.007
- Reference URL: https://attack.mitre.org/techniques/T1218/007/