huntrule

Windows Registry Persistence Indicators in Event Viewer Events.asp Links

Flags Windows registry entries that reference Event Viewer Events.asp redirection URLs, excluding known benign svchost/GPO templates.

FreeReviewedSigma · Medium · v1
Product
windows
Category
registry_set
Author
Nasreddine Bencherchali (Nextron Systems) (SigmaHQ), DRL 1.1
Published
2023-02-17
Updated
2026-07-30
AnalysisDetection

ATT&CK techniques

Persistence → Defense Evasion

  1. Recon

  2. Resource Dev

  3. Initial Access

  4. Execution

  5. Persistence

  6. Priv Esc

  7. Defense Evasion

  8. Cred Access

  9. Discovery

  10. Lateral Movement

  11. Collection

  12. C2

  13. Exfiltration

  14. Impact

What it detects

This rule identifies registry values associated with the Windows Event Viewer redirection components that reference Events.asp via specific Event Viewer-related registry paths. Such persistence/defense-impairment behavior matters because it can redirect users from legitimate event viewing or related content to attacker-controlled or manipulated destinations. It relies on registry change/set telemetry that captures the TargetObject and Details fields, along with process Image context to filter known benign GPO-controlled entries.

Reporting behind it

Related detections9 linkedT1112 — drag to rearrange
Malicious Enabling of Restricted Admin Mode via Registry by UAT-8837
Suspicious Enabling of Remote Desktop via fDenyTSConnections Registry by DeadLock Ransomware
Malicious Service DLL Hijack for Persistence via Lotus Blossom
Suspicious Loopback Proxy Server Configured via Registry (via registry_set)
Malicious WDigest Credential Caching Enabled via Registry (via registry_set)
Suspicious Remote Desktop Enabled via fDenyTSConnections Registry by Sandworm
Malicious Gh0stBins RAT Registry Marker HHClient
Suspicious PebbleDash C2 Configuration Stored Under WMI Security Key (via registry_set)
Suspicious WDigest UseLogonCredential Enablement for Plaintext Credential Theft (via registry_set)
Windows Registry Persistence Indicators in Event Viewer Events.asp Links
Pivot detection · T1112 · 9 related

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.