IMPORTANT: No additional bug fixes or documentation updates
will be released for this version. For the latest information, see the
current release documentation.
Windows Installer with Suspicious Propertiesedit
Identifies 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: 1
Rule authors:
- Elastic
Rule license: Elastic License v2
Rule queryedit
sequence with maxspan=1m
[registry where host.os.type == "windows" 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/