Detectionhightest
Potential RipZip Attack on Startup Folder
Detects a phishing attack which expands a ZIP file containing a malicious shortcut. If the victim expands the ZIP file via the explorer process, then the explorer process expands the malicious ZIP file and drops a malicious shortcut redirected to a backdoor into the Startup folder. Additionally, the file name of the malicious shortcut in Startup folder contains {0AFACED1-E828-11D1-9187-B532F1E9575D} meaning the folder shortcut operation.
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Log Source
WindowsFile Event
ProductWindows← raw: windows
CategoryFile Event← raw: file_event
Events for file system activity including creation, modification, and deletion.
Detection Logic
Detection Logic1 selector
detection:
selection: # %APPDATA%\Microsoft\Windows\Start Menu\Programs\Startup\target.lnk.{0AFACED1-E828-11D1-9187-B532F1E9575D}\target.lnk
TargetFilename|contains|all:
- '\Microsoft\Windows\Start Menu\Programs\Startup'
- '.lnk.{0AFACED1-E828-11D1-9187-B532F1E9575D}'
Image|endswith: '\explorer.exe'
condition: selectionFalse Positives
Unknown
False positive likelihood has not been assessed. Additional context may be needed during triage.
References
MITRE ATT&CK
Rule Metadata
Rule ID
a6976974-ea6f-4e97-818e-ea08625c52cb
Status
test
Level
high
Type
Detection
Created
Thu Jul 21
Modified
Thu Jan 05
Author
Path
rules/windows/file/file_event/file_event_win_ripzip_attack.yml
Raw Tags
attack.privilege-escalationattack.persistenceattack.t1547