Malicious Tool Execution from inetpub Web Root Directory

ATT&CK techniques

Execution → Priv Esc

Recon
Resource Dev
Initial Access
Execution
- T1053.005Scheduled Task
Persistence
- T1053.005Scheduled Task
Priv Esc
- T1053.005Scheduled Task
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects execution of binaries from the inetpub pub directory, where the DynoWiper actor staged scheduling and update tools such as schtask.exe and update executables after web-server compromise. Legitimate processes rarely execute from inside the IIS web root, so a running binary there points to post-exploitation tooling.

Reporting behind it

Related detections9 linkedT1053.005 — drag to rearrange

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Malicious Scheduled Task Masquerading as Defender NisSrv via Schtasks

Malicious Scheduled Task Masquerading as Windows Defender Updater (via process_creation)

Suspicious Scheduled Task Masquerading as Palo Alto Cortex Services

Malicious Scheduled Task Running rundll32 w32analytics (via process_creation)

Malicious Scheduled rundll32 Execution of ProgramData VMware DLL by BianLian

Malicious Tool Execution from inetpub Web Root Directory

Pivot detection · T1053.005 · 9 related

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

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