Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

parse_description in windows_eventlog2 is broken #97

Open
ichintu opened this issue Mar 6, 2023 · 2 comments
Open

parse_description in windows_eventlog2 is broken #97

ichintu opened this issue Mar 6, 2023 · 2 comments

Comments

@ichintu
Copy link

ichintu commented Mar 6, 2023

I think parse_description true is broken. My config:

<source>
  @type windows_eventlog2
  @id windows_eventlog2
  channels Windows PowerShell,Microsoft-Windows-Sysmon/Operational,Security
  tag winevt.raw
  render_as_xml true
  parse_description true
  read_existing_events false
  <storage>
    @type local
    persistent true
    path C:\opt\td-agent\winlog.json
  </storage>
</source>

<match winevt.raw>
  @type file
  path C:\logs_out\fluentd\winlog
  # compress gzip
  <format>
    @type json
  </format>
  <buffer>
    timekey 5m
    timekey_use_utc true
    timekey_wait 1m
  </buffer>
</match>

What i am expecting is something that looks like this:

{
  "ProviderName": "Microsoft-Windows-Security-Auditing",
  "ProviderGUID": "{D441060A-9695-472B-90BC-24DCA9D503A4}",
  "EventID": "4798",
  "Qualifiers": "",
  "Level": "0",
  "Task": "13824",
  "Opcode": "0",
  "Keywords": "0x8020000000000000",
  "TimeCreated": "2019-06-19T03:10:01.982940200Z",
  "EventRecordID": "87028",
  "ActivityID": "",
  "RelatedActivityID": "{2599DE71-2F70-44AD-9DC8-C5FF2AE8D1EF}",
  "ThreadID": "16888",
  "Channel": "Security",
  "Computer": "DESKTOP-TEST",
  "UserID": "",
  "Version": "0",
  "DescriptionTitle": "A user's local group membership was enumerated.",
  "subject.security_id": "S-X-Y-Z",
  "subject.account_name": "DESKTOP-TEST$",
  "subject.account_domain": "WORKGROUP",
  "subject.logon_id": "0x3e7",
  "user.security_id": "S-XXX-YYY-ZZZ",
  "user.account_name": "Administrator",
  "user.account_domain": "DESKTOP-TEST",
  "process_information.process_id": "0xbac",
  "process_information.process_name": "C:\\Windows\\System32\\svchost.exe"
}

However what I am getting is:

{
  "ProviderName": "Microsoft-Windows-Sysmon",
  "ProviderGUID": "{5770385f-c22a-43e0-bf4c-06f5698ffbd9}",
  "EventID": "1",
  "Qualifiers": "",
  "Level": "4",
  "Task": "1",
  "Opcode": "0",
  "Keywords": "0x8000000000000000",
  "TimeCreated": "2023-03-06T18:15:15.560133900Z",
  "EventRecordID": "7154",
  "ActivityID": "",
  "RelatedActivityID": "",
  "ProcessID": "2936",
  "ThreadID": "4880",
  "Channel": "Microsoft-Windows-Sysmon/Operational",
  "Computer": "W10-SANDY-001",
  "UserID": "S-1-5-18",
  "Version": "5",
  "DescriptionTitle": "Process Create:\r\nRuleName: \r\nUtcTime: 2023-03-06 18:15:15.558\r\nProcessGuid: {84faa657-2db3-6406-0000-0010e59d5202}\r\nProcessId: 1336\r\nImage: C:\\opt\\td-agent\\bin\\ruby.exe\r\nFileVersion: 2.7.6p219\r\nDescription: Ruby interpreter (CUI) 2.7.6p219 [x64-mingw32]\r\nProduct: Ruby interpreter 2.7.6p219 [x64-mingw32]\r\nCompany: http://www.ruby-lang.org/\r\nOriginalFileName: ruby.exe\r\nCommandLine: C:\\opt\\td-agent\\bin\\ruby.exe -Eascii-8bit:ascii-8bit -h\r\nCurrentDirectory: c:\\opt\\td-agent\\\r\nUser: W10-SANDY-001\\Johnny Douche\r\nLogonGuid: {84faa657-1673-6405-0000-0020b4830100}\r\nLogonId: 0x183B4\r\nTerminalSessionId: 1\r\nIntegrityLevel: High\r\nHashes: MD5=949C42C68A780AB3AB2EE4730B56230D,SHA256=4815AC3DA6906A52031D0A21314493F66635D717125D644CFB3784396838F7DC\r\nParentProcessGuid: {84faa657-2dae-6406-0000-0010bf854f02}\r\nParentProcessId: 5988\r\nParentImage: C:\\opt\\td-agent\\bin\\ruby.exe\r\nParentCommandLine: \"C:\\opt\\td-agent\\bin\\ruby.exe\"  \"C:\\opt\\td-agent\\bin\\fluentd\" -c etc\\td-agent\\td-agent.conf"
}

Am I doing something wrong or something broken with the parser?

@ichintu
Copy link
Author

ichintu commented Mar 6, 2023

I wanted to share of what happens when i set parse_description false
so the configuration is definitely trying to parse but its not parsing properly.

{
  "ProviderName": "Microsoft-Windows-Sysmon",
  "ProviderGUID": "{5770385f-c22a-43e0-bf4c-06f5698ffbd9}",
  "EventID": "1",
  "Qualifiers": "",
  "Level": "4",
  "Task": "1",
  "Opcode": "0",
  "Keywords": "0x8000000000000000",
  "TimeCreated": "2023-03-06T17:32:19.497163500Z",
  "EventRecordID": "7137",
  "ActivityID": "",
  "RelatedActivityID": "",
  "ProcessID": "2936",
  "ThreadID": "4880",
  "Channel": "Microsoft-Windows-Sysmon/Operational",
  "Computer": "W10-SANDY-001",
  "UserID": "S-1-5-18",
  "Version": "5",
  "Description": "Process Create:\r\nRuleName: \r\nUtcTime: 2023-03-06 17:32:19.495\r\nProcessGuid: {84faa657-23a3-6406-0000-0010d577d201}\r\nProcessId: 7668\r\nImage: C:\\opt\\td-agent\\bin\\ruby.exe\r\nFileVersion: 2.7.6p219\r\nDescription: Ruby interpreter (CUI) 2.7.6p219 [x64-mingw32]\r\nProduct: Ruby interpreter 2.7.6p219 [x64-mingw32]\r\nCompany: http://www.ruby-lang.org/\r\nOriginalFileName: ruby.exe\r\nCommandLine: \"C:\\opt\\td-agent\\bin\\ruby.exe\"  \"C:\\opt\\td-agent\\bin\\fluentd\" -c etc\\td-agent\\td-agent.conf\r\nCurrentDirectory: c:\\opt\\td-agent\\\r\nUser: W10-SANDY-001\\Johnny Douche\r\nLogonGuid: {84faa657-1673-6405-0000-0020b4830100}\r\nLogonId: 0x183B4\r\nTerminalSessionId: 1\r\nIntegrityLevel: High\r\nHashes: MD5=949C42C68A780AB3AB2EE4730B56230D,SHA256=4815AC3DA6906A52031D0A21314493F66635D717125D644CFB3784396838F7DC\r\nParentProcessGuid: {84faa657-02a1-6406-0000-0010ffd05401}\r\nParentProcessId: 1204\r\nParentImage: C:\\Windows\\SysWOW64\\cmd.exe\r\nParentCommandLine: \"C:\\Windows\\SysWOW64\\cmd.exe\" /k \"C:\\opt\\td-agent\\td-agent-prompt.bat\"",
  "EventData": [
    "",
    "2023-03-06 17:32:19.495",
    "{84FAA657-23A3-6406-0000-0010D577D201}",
    "7668",
    "C:\\opt\\td-agent\\bin\\ruby.exe",
    "2.7.6p219",
    "Ruby interpreter (CUI) 2.7.6p219 [x64-mingw32]",
    "Ruby interpreter 2.7.6p219 [x64-mingw32]",
    "http://www.ruby-lang.org/",
    "ruby.exe",
    "\"C:\\opt\\td-agent\\bin\\ruby.exe\"  \"C:\\opt\\td-agent\\bin\\fluentd\" -c etc\\td-agent\\td-agent.conf",
    "c:\\opt\\td-agent\\",
    "W10-SANDY-001\\Johnny Douche",
    "{84FAA657-1673-6405-0000-0020B4830100}",
    "0x00000000000183b4",
    "1",
    "High",
    "MD5=949C42C68A780AB3AB2EE4730B56230D,SHA256=4815AC3DA6906A52031D0A21314493F66635D717125D644CFB3784396838F7DC",
    "{84FAA657-02A1-6406-0000-0010FFD05401}",
    "1204",
    "C:\\Windows\\SysWOW64\\cmd.exe",
    "\"C:\\Windows\\SysWOW64\\cmd.exe\" /k \"C:\\opt\\td-agent\\td-agent-prompt.bat\""
  ]
}

@AmeOnCoffee
Copy link

Same issue here, using Fluentd and Loki. doesnt seem to be fixed

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
None yet
Projects
None yet
Development

No branches or pull requests

2 participants