ID | Technique | Tactic |
---|---|---|
T1070.004 | File Deletion | Defense Evasion |
Detection: Windows Rdp AutomaticDestinations Deletion
Description
This detection identifies the deletion of files within the AutomaticDestinations folder, located under a user’s AppData\Roaming\Microsoft\Windows\Recent directory. These files are part of the Windows Jump List feature, which records recently accessed files and folders tied to specific applications. Each .automaticDestinations-ms file corresponds to a program (e.g., Explorer, Word, Notepad) and can be valuable for forensic analysis of user activity. Adversaries may target this folder to erase evidence of their actions, such as which documents or directories were accessed during a session. This type of deletion is rarely seen during normal user activity and may indicate deliberate anti-forensic behavior. When correlated with suspicious logon events, RDP usage, or script execution, this activity may represent an attempt to cover tracks after data access, lateral movement, or staging for exfiltration. Detecting removal of these artifacts can highlight post-compromise cleanup efforts and help analysts reconstruct attacker behavior.
Search
1`sysmon` EventCode=23 TargetFilename IN ("*\\Recent\\AutomaticDestinations*")
2| stats count min(_time) as firstTime, max(_time) as lastTime by action dest dvc file_path file_hash file_name file_modify_time process_exec process_guid process_id process_name process_path signature signature_id user user_id vendor_product
3| `security_content_ctime(firstTime)`
4| `security_content_ctime(lastTime)`
5| `windows_rdp_automaticdestinations_deletion_filter`
Data Source
Name | Platform | Sourcetype | Source |
---|---|---|---|
Sysmon EventID 23 | 'XmlWinEventLog' |
'XmlWinEventLog:Microsoft-Windows-Sysmon/Operational' |
|
Sysmon EventID 26 | 'XmlWinEventLog' |
'XmlWinEventLog:Microsoft-Windows-Sysmon/Operational' |
Macros Used
Name | Value |
---|---|
security_content_ctime | convert timeformat="%Y-%m-%dT%H:%M:%S" ctime($field$) |
windows_rdp_automaticdestinations_deletion_filter | search * |
windows_rdp_automaticdestinations_deletion_filter
is an empty macro by default. It allows the user to filter out any results (false positives) without editing the SPL.
Annotations
Default Configuration
This detection is configured by default in Splunk Enterprise Security to run with the following settings:
Setting | Value |
---|---|
Disabled | true |
Cron Schedule | 0 * * * * |
Earliest Time | -70m@m |
Latest Time | -10m@m |
Schedule Window | auto |
Creates Risk Event | True |
Implementation
To successfully implement this search, you must ingest logs that include the process name, TargetFilename, and ProcessID executions from your endpoints. If you are utilizing Sysmon, ensure you have at least version 2.0 of the Sysmon TA installed.
Known False Positives
False positives will be present, filter as needed or restrict to critical assets on the perimeter.
Associated Analytic Story
Risk Based Analytics (RBA)
Risk Message:
A file related to rdp automatic destination folder has been deleted on $dest$.
Risk Object | Risk Object Type | Risk Score | Threat Objects |
---|---|---|---|
dest | system | 40 | No Threat Objects |
References
Detection Testing
Test Type | Status | Dataset | Source | Sourcetype |
---|---|---|---|---|
Validation | ✅ Passing | N/A | N/A | N/A |
Unit | ✅ Passing | Dataset | XmlWinEventLog:Microsoft-Windows-Sysmon/Operational |
XmlWinEventLog |
Integration | ✅ Passing | Dataset | XmlWinEventLog:Microsoft-Windows-Sysmon/Operational |
XmlWinEventLog |
Replay any dataset to Splunk Enterprise by using our replay.py
tool or the UI.
Alternatively you can replay a dataset into a Splunk Attack Range
Source: GitHub | Version: 1