Query: detect Detects file access to browser credential storage paths by non-browser processes, which may indicate credential access a in logs
Matching passage: Sigma rule: Detects file access to browser credential storage paths by non-browser processes, which may indicate credential access a. Logsource: windows / file_access. Rule: title: Suspicious File Access to Browser Credential Storage id: a1dfd976-4852-41d4-9507-dc6590a3ccd0 status: experimental description: 'Detects file access to browser credential storage paths by non-browser processes, which may indicate credential access attempts. Adversaries may attempt to access browser credential storage to extract sensitive information such as usernames and passwords or cookies. This behavior is often commonly observed in credential stealing malware. ' references: - https://github.com/splunk/security_content/blob/7283ba3723551f46b69dfeb23a63b358afb2cb0e/lookups/browser_app_list.csv?plain=1 - https://fourcore.io/blogs/threat-hunting-browser-credential-stealing author: frack113, X__Junior (Nextron Systems), Swachchhanda Shrawan Poudel (Nextron Systems), Parth-FourCore date: 2025-05-22 tags: - attack.credential-access - attack.t1555.003 - attack.discovery - attack.t1217 logsource: category: file_access product: windows detection: selection_browser_paths: FileName|contains: - \Sputnik\Sputnik - \MapleStudio\ChromePlus - \QIP Surf - \BlackHawk - \7Star\7Star - \CatalinaGroup\Citrio - \Google\Chrome - \Coowon\Coowon - \CocCoc\Browser - \uCozMedia\Uran - \Tencent\QQBrowser - \Orbitum - \Slimjet - \Iridium - \Vivaldi - \Chromium - \GhostBrowser - \CentBrowser - \Xvast - \Chedot - \SuperBird - \360Browser\Browser - \360Chrome\Chrome - \Comodo\Dragon - \BraveSoftware\Brave-Browser - \Torch - \UCBrowser\ - \Blisk - \Epic Privacy Browser - \Nichrome - \Amigo - \Kometa - \Xpom - \Microsoft\Edge - \Liebao7Default\EncryptedStorage - \AVAST Software\Browser - \Kinza - \Mozilla\SeaMonkey\ - \Comodo\IceDragon\ - \8pecxstudios\Cyberfox\ - \FlashPeak\SlimBrowser\ - \Moonchild Productions\Pale Moon\ selection_browser_subpaths: FileName|contains: - \Profiles\ - \User Data selection_cred_files: - FileName|contains: - \Login Data - \Cookies - \EncryptedStorage - \WebCache\ - FileName|endswith: - cert9.db - cookies.sqlite - formhistory.sqlite - key3.db - key4.db - Login Data.sqlite - logins.json - places.sqlite filter_main_img: Image|endswith: - \Sputnik.exe - \ChromePlus.exe - \QIP Surf.exe - \BlackHawk.exe - \7Star.exe - \Sleipnir5.exe - \Citrio.exe - \Chrome SxS.exe - \Chrome.exe - \Coowon.exe - \CocCocBrowser.exe - \Uran.exe - \QQBrowser.exe - \Orbitum.exe - \Slimjet.exe - \Iridium.exe - \Vivaldi.exe - \Chromium.exe - \GhostBrowser.exe - \CentBrowser.exe - \Xvast.exe - \Chedot.exe - \SuperBird.exe - \360Browser.exe - \360Chrome.exe - \dragon.exe - \brave.e
Near-miss passage: Sigma rule: Detects creation of a file named "ntds.dit" (Active Directory Database) by an uncommon parent process or directory. Logsource: windows / file_event. Rule: title: NTDS.DIT Creation By Uncommon Parent Process id: 4e7050dd-e548-483f-b7d6-527ab4fa784d related: - id: 11b1ed55-154d-4e82-8ad7-83739298f720 type: similar status: test description: Detects creation of a file named "ntds.dit" (Active Directory Database) by an uncommon parent process or directory references: - https://www.ired.team/offensive-security/credential-access-and-credential-dumping/ntds.dit-enumeration - https://www.n00py.io/2022/03/manipulating-user-passwords-without-mimikatz/ - https://pentestlab.blog/tag/ntds-dit/ - https://github.com/samratashok/nishang/blob/414ee1104526d7057f9adaeee196d91ae447283e/Gather/Copy-VSS.ps1 author: Florian Roth (Nextron Systems) date: 2022-03-11 modified: 2023-01-05 tags: - attack.credential-access - attack.t1003.003 logsource: product: windows category: file_event definition: 'Requirements: The "ParentImage" field is not available by default on EID 11 of Sysmon logs. To be able to use this rule to the full extent you need to enrich the log with additional ParentImage data' detection: selection_file: TargetFilename|endswith: \ntds.dit selection_process_parent: ParentImage|endswith: - \cscript.exe - \httpd.exe - \nginx.exe - \php-cgi.exe - \powershell.exe - \pwsh.exe - \w3wp.exe - \wscript.exe selection_process_parent_path: ParentImage|contains: - \apache - \tomcat - \AppData\ - \Temp\ - \Public\ - \PerfLogs\ condition: selection_file and 1 of selection_process_* falsepositives: - Unknown level: high