Detectionhightest
Suspicious Mstsc.EXE Execution With Local RDP File
Detects potential RDP connection via Mstsc using a local ".rdp" file located in suspicious locations.
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Launch
Nasreddine Bencherchali (Nextron Systems)Created Tue Apr 186e22722b-dfb1-4508-a911-49ac840b40f8windows
Log Source
WindowsProcess Creation
ProductWindows← raw: windows
CategoryProcess Creation← raw: process_creation
Events generated when a new process is spawned on the system. Covers command-line arguments, parent/child relationships, and process metadata.
Detection Logic
Detection Logic3 selectors
detection:
selection_img:
- Image|endswith: '\mstsc.exe'
- OriginalFileName: 'mstsc.exe'
selection_extension:
CommandLine|endswith:
- '.rdp'
- '.rdp"'
selection_paths:
# Note: This list of paths is better transformed into a whitelist where you only exclude legitimate locations you use in your env
CommandLine|contains:
- ':\Users\Public\'
- ':\Windows\System32\spool\drivers\color'
- ':\Windows\System32\Tasks_Migrated '
- ':\Windows\Tasks\'
- ':\Windows\Temp\'
- ':\Windows\Tracing\'
- '\AppData\Local\Temp\'
# - '\Desktop\' # Could be source of FP depending on the environment
- '\Downloads\' # Could be source of FP depending on the environment
condition: all of selection_*False Positives
Likelihood is related to how often the paths are used in the environment
MITRE ATT&CK
Tactics
Other
attack.t1219.002
Rule Metadata
Rule ID
6e22722b-dfb1-4508-a911-49ac840b40f8
Status
test
Level
high
Type
Detection
Created
Tue Apr 18
Path
rules/windows/process_creation/proc_creation_win_mstsc_run_local_rdp_file_susp_location.yml
Raw Tags
attack.command-and-controlattack.t1219.002