Potential Remote File Execution via MSIEXEC
editPotential Remote File Execution via MSIEXEC
editIdentifies the execution of the built-in Windows Installer, msiexec.exe, to install a remote package. Adversaries may abuse msiexec.exe to launch local or network accessible MSI files.
Rule type: eql
Rule indices:
- logs-endpoint.events.process-*
- logs-endpoint.events.network-*
Severity: low
Risk score: 21
Runs every: 5m
Searches indices from: now-9m (Date Math format, see also Additional look-back time
)
Maximum alerts per execution: 100
References: None
Tags:
- Domain: Endpoint
- OS: Windows
- Use Case: Threat Detection
- Tactic: Initial Access
- Tactic: Defense Evasion
- Data Source: Elastic Defend
Version: 3
Rule authors:
- Elastic
Rule license: Elastic License v2
Rule query
editsequence with maxspan=1m [process where host.os.type == "windows" and event.action == "start" and process.name : "msiexec.exe" and process.args : "/V"] by process.entity_id [network where host.os.type == "windows" and process.name : "msiexec.exe" and event.action == "connection_attempted"] by process.entity_id [process where host.os.type == "windows" and event.action == "start" and process.parent.name : "msiexec.exe" and user.id : ("S-1-5-21-*", "S-1-5-12-1-*") and not process.executable : ("?:\\Windows\\SysWOW64\\msiexec.exe", "?:\\Windows\\System32\\msiexec.exe", "?:\\Windows\\System32\\srtasks.exe", "?:\\Windows\\SysWOW64\\srtasks.exe", "?:\\Windows\\System32\\taskkill.exe", "?:\\Windows\\Installer\\MSI*.tmp", "?:\\Program Files\\*.exe", "?:\\Program Files (x86)\\*.exe", "?:\\Windows\\System32\\ie4uinit.exe", "?:\\Windows\\SysWOW64\\ie4uinit.exe", "?:\\Windows\\System32\\sc.exe", "?:\\Windows\\system32\\Wbem\\mofcomp.exe", "?:\\Windows\\twain_32\\fjscan32\\SOP\\crtdmprc.exe", "?:\\Windows\\SysWOW64\\taskkill.exe", "?:\\Windows\\SysWOW64\\schtasks.exe", "?:\\Windows\\system32\\schtasks.exe", "?:\\Windows\\System32\\sdbinst.exe") and not (process.code_signature.subject_name == "Citrix Systems, Inc." and process.code_signature.trusted == true) and not (process.name : ("regsvr32.exe", "powershell.exe", "rundll32.exe", "wscript.exe") and process.Ext.token.integrity_level_name == "high" and process.args : ("?:\\Program Files\\*", "?:\\Program Files (x86)\\*")) and not (process.executable : ("?:\\Program Files\\*.exe", "?:\\Program Files (x86)\\*.exe") and process.code_signature.trusted == true) and not (process.name : "rundll32.exe" and process.args : "printui.dll,PrintUIEntry") ] by process.parent.entity_id
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Initial Access
- ID: TA0001
- Reference URL: https://attack.mitre.org/tactics/TA0001/
-
Technique:
- Name: Phishing
- ID: T1566
- Reference URL: https://attack.mitre.org/techniques/T1566/
-
Sub-technique:
- Name: Spearphishing Link
- ID: T1566.002
- Reference URL: https://attack.mitre.org/techniques/T1566/002/
-
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/