Inhibit System Recovery T1490

Events covered

16 catalog events are tagged with this technique by at least one rule.

Authoring guide

Patterns shared across the 56 rules above: which fields they filter on, what specific values they look for, and what they exclude. The catalog normalizes field names across vendors so Sigma's Image, Elastic's process.name, and Splunk's process_name collapse into one row. Each rule contributes at most once per row.

Fields filtered most (39 distinct)

The fields most rules look at when detecting this technique. The How column shows the operators authors use (eq, wildcard, regex_match, match) and how often each appears. Sample values are concrete examples to start from, not an exhaustive list.

Top indicator values (341 distinct)

Specific (field, operator, value) combinations the rules check for, ranked by how many rules under this technique use each one. The Corpus reach column counts how many rules across the entire catalog (any technique) check the same combination. High numbers point to widely-used indicators that are likely noisy on their own; combine them with another condition for useful signal. Blank means the combination is specific to rules under this technique. Click a value to expand the rules under this technique that use it.

Exclusions (80 distinct)

Field/operator/value combinations excluded by rules under this technique (top-level not() clauses), sorted by how many rules exclude each. These are the false-positive paths the community has learned to filter out. A new rule that ignores the high-count entries here will likely fire on the same noisy paths. Click a value to expand the rules under this technique that exclude it.

Rules under this technique

Every rule in the catalog tagged with this technique, grouped by vendor. Click a rule title for its full predicates, exclusions, and indicators.

Sigma 27 rules

• All Backups Deleted Via Wbadmin.EXE
• Amsi.DLL Load By Uncommon Process
• Backup Files Deleted
• Boot Configuration Tampering Via Bcdedit.EXE
• Copy From VolumeShadowCopy Via Cmd.EXE
• Delete Volume Shadow Copies Via WMI With PowerShell
• Deletion of Volume Shadow Copies via WMI with PowerShell
• Deletion of Volume Shadow Copies via WMI with PowerShell - PS Script
• File Recovery From Backup Via Wbadmin.EXE
• New Root or CA or AuthRoot Certificate to Store
• Potential Dtrack RAT Activity
• Potential Maze Ransomware Activity
• Potentially Suspicious Volume Shadow Copy Vsstrace.dll Load
• Registry Disable System Restore
• Sensitive File Access Via Volume Shadow Copy Backup
• Shadow Copies Deletion Using Operating Systems Utilities
• Suspicious Volume Shadow Copy VSS_PS.dll Load
• Suspicious Volume Shadow Copy Vssapi.dll Load
• System Restore Registry Modification via CommandLine
• VSS backup deletion (WMI)
• VSS backup deletion or resize
• VSS backup deletion via WMI (Powershell)
• WannaCry Ransomware Activity
• Windows Backup Deleted Via Wbadmin.EXE
• Windows native backup deletion
• Windows native backup size re-configuration
• Windows Recovery Environment Disabled Via Reagentc

Elastic 9 rules

• Backup Deletion with Wbadmin
• Modification of Boot Configuration
• Potential Ransomware Note File Dropped via SMB
• Potential System Tampering via File Modification
• Suspicious File Renamed via SMB
• Third-party Backup Files Deleted via Unexpected Process
• Volume Shadow Copy Deleted or Resized via VssAdmin
• Volume Shadow Copy Deletion via PowerShell
• Volume Shadow Copy Deletion via WMIC

Splunk 15 rules

• Bcdedit Command Back To Normal Mode Boot
• BCDEdit Failure Recovery Modification
• Change To Safe Mode With Network Config
• Delete ShadowCopy With PowerShell
• Deleting Shadow Copies
• Disabling SystemRestore In Registry
• Prevent Automatic Repair Mode using Bcdedit
• Resize ShadowStorage volume
• WBAdmin Delete System Backups
• Windows BitLocker Suspicious Command Usage
• Windows Cisco Secure Endpoint Related Service Stopped
• Windows Security And Backup Services Stop
• Windows Suspicious File in EFI Volume
• Windows WBAdmin File Recovery From Backup
• Windows WMIC Shadowcopy Delete

Kusto 5 rules

• Detect Malicious Usage of Recovery Tools to Delete Backup Files
• Detecting UAC bypass - ChangePK and SLUI registry tampering
• Detecting UAC bypass - elevated COM interface
• Detecting UAC bypass - modify Windows Store settings
• Shadow Copy Deletions