Sigma rule: Wab Execution From Non Default Location

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-66d000d133b6, updated 2022-09-27T00:00:00.000Z.

Rule

Title
Wab Execution From Non Default Location
Status
test
Level
high
Author
Nasreddine Bencherchali (Nextron Systems)
Date
2022-08-12
Modified
2022-09-27
File
rules/windows/process_creation/proc_creation_win_wab_execution_from_non_default_location.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects execution of wab.exe (Windows Contacts) and Wabmig.exe (Microsoft Address Book Import Tool) from non default locations as seen with bumblebee activity

Log source

product
windows
category
process_creation

Detection

selection:
    Image|endswith:
        - '\wab.exe'
        - '\wabmig.exe'
filter:
    Image|startswith:
        - 'C:\Windows\WinSxS\'
        - 'C:\Program Files\Windows Mail\'
        - 'C:\Program Files (x86)\Windows Mail\'
condition: selection and not filter

False positives (as the rule lists them)

  • Unknown

Tags

  • attack.execution
  • attack.stealth

References

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/process_creation/proc_creation_win_wab_execution_from_non_default_location.yml

Sources and licences

  • SigmaHQ

    "Wab Execution From Non Default Location" by Nasreddine Bencherchali (Nextron Systems) (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/process_creation/proc_creation_win_wab_execution_from_non_default_location.yml.
    Licensed under the Detection Rule License (DRL) 1.1: https://github.com/SigmaHQ/Detection-Rule-License

    Detection Rule License (DRL) 1.1

Cite this page

Dragons Eye Ransomware Tracker, "Sigma rule: Wab Execution From Non Default Location",
entity page, dataset version ref-66d000d133b6, updated 2022-09-27T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/395907ee-96e5-4666-af2e-2ca91688e151 (accessed 2026-11-03).
Underlying source: SigmaHQ rule 395907ee-96e5-4666-af2e-2ca91688e151, commit ccbb0369507f796db0b0ae6854c8a2be471b9d84.

Pages change. The dataset version identifies the data, but no archive of old versions is kept, so this citation cannot be replayed later.