Potential Cookies Theft via Browser Debugging
editPotential Cookies Theft via Browser Debugging
editIdentifies the execution of a Chromium based browser with the debugging process argument, which may indicate an attempt to steal authentication cookies. An adversary may steal web application or service session cookies and use them to gain access web applications or Internet services as an authenticated user without needing credentials.
Rule type: eql
Rule indices:
- auditbeat-*
- winlogbeat-*
- logs-endpoint.events.*
- logs-windows.*
Severity: medium
Risk score: 47
Runs every: 5 minutes
Searches indices from: now-9m (Date Math format, see also Additional look-back time)
Maximum alerts per execution: 33
References:
- https://github.com/defaultnamehere/cookie_crimes
- https://embracethered.com/blog/posts/2020/cookie-crimes-on-mirosoft-edge/
- https://github.com/rapid7/metasploit-framework/blob/master/documentation/modules/post/multi/gather/chrome_cookies.md
- https://posts.specterops.io/hands-in-the-cookie-jar-dumping-cookies-with-chromiums-remote-debugger-port-34c4f468844e
Tags:
- Elastic
- Host
- Linux
- Windows
- macOS
- Threat Detection
- Credential Access
Version: 4 (version history)
Added (Elastic Stack release): 7.12.0
Last modified (Elastic Stack release): 8.4.0
Rule authors: Elastic
Rule license: Elastic License v2
Potential false positives
editDevelopers performing browsers plugin or extension debugging.
Investigation guide
editRule query
editprocess where event.type in ("start", "process_started", "info") and
process.name in ( "Microsoft Edge",
"chrome.exe", "Google Chrome", "google-
chrome-stable", "google-chrome-beta",
"google-chrome", "msedge.exe") and process.args : ("--
remote-debugging-port=*", "--remote-debugging-
targets=*", "--remote-debugging-pipe=*") and
process.args : "--user-data-dir=*" and not process.args:"--remote-
debugging-port=0"
Threat mapping
editFramework: MITRE ATT&CKTM
-
Tactic:
- Name: Credential Access
- ID: TA0006
- Reference URL: https://attack.mitre.org/tactics/TA0006/
-
Technique:
- Name: Steal Web Session Cookie
- ID: T1539
- Reference URL: https://attack.mitre.org/techniques/T1539/
Rule version history
edit- Version 4 (8.4.0 release)
-
-
Updated query, changed from:
process where event.type in ("start", "process_started", "info") and process.name in ( "Microsoft Edge", "chrome.exe", "Google Chrome", "google- chrome-stable", "google-chrome-beta", "google-chrome", "msedge.exe") and process.args : ("-- remote-debugging-port=*", "--remote-debugging- targets=*", "--remote-debugging-pipe=*") and process.args : "--user-data-dir=*" and not process.args:"--remote- debugging-port=0"
-
- Version 2 (8.2.0 release)
-
- Formatting only