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Indexed Rules
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Live from sigconverter.io
CLI Versions
10
Newest: 2.0.2
Translation Workspace
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Tune Translation
Active Rule
Suspicious File Access to Browser Credential Storage
Target Profile
Splunk
Splunk SPL & tstats data model queries
Format Mode
Default
Plain SPL queries
Conversion Output
Suspicious File Access to Browser Credential Storage
Using Splunk · Default · sigma-cli 2.0.2
Translation controls
Adjust the rule on the left, then regenerate when you want a fresh backend-native query.
BackendSplunkFormatDefaultVersion2.0.2
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.exe'
- '\torch.exe'
- '\UCBrowser.exe'
- '\BliskBrowser.exe'
- '\Epic Privacy Browser.exe'
- '\nichrome.exe'
- '\AmigoBrowser.exe'
- '\KometaBrowser.exe'
- '\XpomBrowser.exe'
- '\msedge.exe'
- '\LiebaoBrowser.exe'
- '\AvastBrowser.exe'
- '\Kinza.exe'
- '\seamonkey.exe'
- '\icedragon.exe'
- '\cyberfox.exe'
- '\SlimBrowser.exe'
- '\palemoon.exe'
filter_main_path:
Image|contains:
- '\Sputnik\'
- '\MapleStudio\'
- '\QIP Surf\'
- '\BlackHawk\'
- '\7Star\'
- '\Fenrir Inc\'
- '\CatalinaGroup\'
- '\Google\'
- '\Coowon\'
- '\CocCoc\'
- '\uCozMedia\'
- '\Tencent\'
- '\Orbitum\'
- '\Slimjet\'
- '\Iridium\'
- '\Vivaldi\'
- '\Chromium\'
- '\GhostBrowser\'
- '\CentBrowser\'
- '\Xvast\'
- '\Chedot\'
- '\SuperBird\'
- '\360Browser\'
- '\360Chrome\'
- '\Comodo\'
- '\BraveSoftware\'
- '\Torch\'
- '\UCBrowser\'
- '\Blisk\'
- '\Epic Privacy Browser\'
- '\Nichrome\'
- '\Amigo\'
- '\Kometa\'
- '\Xpom\'
- '\Microsoft\'
- '\Liebao7\'
- '\AVAST Software\'
- '\Kinza\'
- '\Mozilla\'
- '\8pecxstudios\'
- '\FlashPeak\'
- '\Moonchild Productions\'
filter_main_system:
Image: System
ParentImage: Idle
filter_main_generic:
Image|startswith:
- 'C:\Program Files\'
- 'C:\Program Files (x86)\'
- 'C:\Windows\System32\'
- 'C:\Windows\SysWOW64\'
filter_optional_defender:
Image|contains: '\Microsoft\Windows Defender\'
Image|endswith:
- '\MpCopyAccelerator.exe'
- '\MsMpEng.exe'
filter_optional_thor:
Image|endswith:
- '\thor.exe'
- '\thor64.exe'
filter_optional_msiexec:
ParentImage: 'C:\Windows\System32\msiexec.exe'
filter_optional_other:
Image|endswith: '\everything.exe'
condition: all of selection_* and not 1 of filter_main_* and not 1 of filter_optional_*
falsepositives:
- Antivirus, Anti-Spyware, Anti-Malware Software
- Legitimate software accessing browser data for synchronization or backup purposes.
- Legitimate software installed on partitions other than "C:\"
level: low
CLI command
Copy the exact command to reproduce this translation locally.
sigma convert --without-pipeline -t splunk -f default rules/windows/file/file_access/file_access_win_susp_process_access_browser_cred_files.yml