Detectionmediumtest
Potentially Suspicious Electron Application CommandLine
Detects potentially suspicious CommandLine of electron apps (teams, discord, slack, etc.). This could be a sign of abuse to proxy execution through a signed binary.
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François Hubaut, Nasreddine Bencherchali (Nextron Systems)Created Tue Sep 05Updated Thu Nov 09378a05d8-963c-46c9-bcce-13c7657eac99windows
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 Logic2 selectors
detection:
selection_img:
- Image|endswith:
# Add more electron based app to the list
- '\chrome.exe'
- '\code.exe'
- '\discord.exe'
- '\GitHubDesktop.exe'
- '\keybase.exe'
- '\msedge_proxy.exe'
- '\msedge.exe'
- '\msedgewebview2.exe'
- '\msteams.exe'
- '\slack.exe'
- '\Teams.exe'
- OriginalFileName:
# Add more electron based app to the list
- 'chrome.exe'
- 'code.exe'
- 'discord.exe'
- 'GitHubDesktop.exe'
- 'keybase.exe'
- 'msedge_proxy.exe'
- 'msedge.exe'
- 'msedgewebview2.exe'
- 'msteams.exe'
- 'slack.exe'
- 'Teams.exe'
selection_cli:
CommandLine|contains:
- '--browser-subprocess-path'
- '--gpu-launcher'
- '--renderer-cmd-prefix'
- '--utility-cmd-prefix'
condition: all of selection_*False Positives
Legitimate usage for debugging purposes
MITRE ATT&CK
Tactics
Rule Metadata
Rule ID
378a05d8-963c-46c9-bcce-13c7657eac99
Status
test
Level
medium
Type
Detection
Created
Tue Sep 05
Modified
Thu Nov 09
Path
rules/windows/process_creation/proc_creation_win_susp_electron_execution_proxy.yml
Raw Tags
attack.execution