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BLUE TEAM / THREAT HUNT / WINDOWS / EXFILTRATION

Browser Dumping

This note documents detection patterns related to Browser Credential Dumping within Windows environments.


Direct Indicators

LogEvent IDMeaningForensic ValueNotes
Security4688Process creationCriticalDetects browser dump tooling, SQLite access tools, and credential extraction commands.
Sysmon1Process creationCriticalBest execution source for browser dump tooling and lineage.
Sysmon11File createCriticalCaptures copied login databases, exported credentials, temp dumps.
Sysmon10Process accessHighUseful if browser process memory accessed directly.
Security4663Object accessHighBrowser database access if auditing enabled.
Sysmon7Image loadedMediumSQLite libraries or crypto DLLs loaded unexpectedly.
PowerShell4104Script block loggingCriticalScripted browser credential extraction.

Indirect Indicators

IndicatorWhat To Look ForForensic ValueNotes
Access to Login Data DBChrome / Edge SQLite credential storeCriticalCore browser theft signal.
Cookies DB copiedSession theft preparationHighOften paired with credential dump.
Browser profile copied to TempStaging for offline parsingCriticalCommon attacker workflow.
DPAPI + browser path chainMasterkey + DB accessCriticalStrong full credential theft chain.
Browser closed before dumpLocked DB bypass tacticMediumOperational clue.
Export file createdTXT / CSV / JSON secretsCriticalImmediate theft evidence.

Common Tools

ToolUsage
SharpChromeChrome credential extraction
mimikatzBrowser secrets via DPAPI
LaZagneBrowser password dumping
sqlite3.exeManual DB extraction
PowerShellBrowser DB copy / DPAPI decrypt
custom scriptsCredential parsing

Relevant Artifacts

  • Sysmon Event IDs 1, 10, 11
  • Security Event IDs 4688, 4663
  • PowerShell 4104
  • Browser paths:
    • %LOCALAPPDATA%\Google\Chrome\User Data\
    • %LOCALAPPDATA%\Microsoft\Edge\User Data\
    • %APPDATA%\Mozilla\Firefox\Profiles\
  • Files:
    • Login Data
    • Cookies
    • Web Data
  • Prefetch: SQLITE3.EXE, MIMIKATZ.EXE, SHARPCHROME.EXE
  • Amcache / ShimCache
  • MFT / USN for copied DBs

MITRE ATT&CK References

  • T1555 Credentials from Password Stores
  • T1555.003 Credentials from Web Browsers
  • T1003 OS Credential Dumping

Decision Tree

  1. Which browser artifact accessed?

    • Login Data
    • Cookies
    • Firefox profile
  2. Which process performed access?

    • Signed?
    • Known tool?
  3. DPAPI involved?

    • Masterkey access
    • LSASS access
  4. Output created?

    • Temp file
    • Archive
    • Exfil candidate
  5. Expand:

    • Session theft
    • Browser history access
    • Additional user profiles
  6. Scope:

    • Single profile
    • Multi-user collection
    • Enterprise spread

Example Detection Templates

KQL

Sysmon
| where EventID == 1
| where CommandLine has_any ("SharpChrome","LaZagne","sqlite","Login Data")
| project TimeGenerated, Computer, User, CommandLine
Sysmon
| where EventID == 11
| where TargetFilename has_any ("Login Data","Cookies","Web Data")
| project TimeGenerated, Computer, TargetFilename

EQL

process where process.command_line like "*SharpChrome*" or process.command_line like "*Login Data*"
sequence by host.name with maxspan=5m
  [ process where process.name != null ]
  [ file where file.path like "*Login Data*" ]

Sigma

title: Browser Credential Dumping Detection
id: 5e1b8a62-browser-dump
status: experimental
description: Detects browser credential database access linked to credential theft
references:
  - https://attack.mitre.org/
author: Vergil
date: 2026-03-07
logsource:
  product: windows
  service: sysmon
detection:
  selection:
    CommandLine|contains:
      - 'SharpChrome'
      - 'LaZagne'
      - 'Login Data'
      - 'Cookies'
  condition: selection
fields:
  - CommandLine
  - ParentImage
falsepositives:
  - Browser migration tools
level: high
tags:
  - attack.credential_access
  - attack.t1555.003

Mitigation & Hardening

Control AreaMitigationEffectivenessNotes
DPAPI hardeningProtect masterkeysCriticalCore browser secret dependency
Browser password policyRestrict local secret storageHighReduce value
Sysmon file monitoringWatch browser DB accessHighStrong artifact coverage
EDR lineageTrack DB copy operationsCriticalBest triage source
Session securityRe-auth policiesHighLimits stolen cookie impact