Commit Graph

5681 Commits

Author SHA1 Message Date
Sittikorn S e16974522b Update sysmon_process_hollowing.yml
Update filters
2022-02-01 15:19:36 +07:00
Florian Roth 0d27cf9681 Merge pull request #2624 from SigmaHQ/rule-devel
Some TeamViewer rules
2022-01-31 16:38:58 +01:00
Florian Roth 926f9b588c Merge pull request #2605 from securepeacock/patch-9
Rundll32 From Abnormal Drive
2022-01-31 16:38:46 +01:00
frack113 7ceb3968d8 Update file_event_susp_teamviewer_remote_session.yml 2022-01-31 06:24:02 +01:00
Florian Roth c35973d6e7 rule: TeamViewer remote session 2022-01-30 22:26:13 +01:00
Florian Roth ba3065e943 refactor: added another TV domain 2022-01-30 22:26:01 +01:00
Florian Roth 1b57916890 rule: suspicious renamed teamviewer 2022-01-30 22:05:47 +01:00
Florian Roth fb44e9ae56 Update process_creation_rundll32_not_from_c_drive.yml 2022-01-30 21:48:57 +01:00
Florian Roth d27deada7d Merge pull request #2622 from frack113/red_20220130
win_pc_susp_takeown
2022-01-30 18:06:36 +01:00
frack113 542a901f57 add win_pc_susp_takeown 2022-01-30 12:03:32 +01:00
Florian Roth 545e8c1c03 Merge pull request #2606 from securepeacock/patch-10
Create sysmon_process_hollowing.yml
2022-01-30 11:33:58 +01:00
Florian Roth 027fce7f13 Update sysmon_process_hollowing.yml 2022-01-29 23:55:21 +01:00
Florian Roth e0425f2167 Merge pull request #2620 from SigmaHQ/aurora-false-positive-fixing
Aurora false positive fixing
2022-01-29 19:34:02 +01:00
Florian Roth 8d5742e83e fix: fixing FPs with LSASS access mask in old rule 2022-01-29 18:17:46 +01:00
Florian Roth 642b3748fe Merge pull request #2615 from frack113/redcannary_20220128
Add windows redcannary rules
2022-01-29 15:25:40 +01:00
Florian Roth dc19846101 fix: FPs in deprecated rule 2022-01-28 23:43:11 +01:00
Florian Roth 56fba15638 Update process_creation_tool_nircmd.yml 2022-01-28 23:14:17 +01:00
Florian Roth 34c8de908d Update process_creation_tool_nircmd_as_system.yml 2022-01-28 23:08:41 +01:00
Nasreddine Bencherchali 6f96372ece Update process_creation_tool_nircmd_as_system.yml 2022-01-28 21:10:52 +01:00
Nasreddine Bencherchali b0b9d32dfa Update process_creation_tool_nircmd.yml 2022-01-28 21:10:03 +01:00
Nasreddine Bencherchali 0b09dbdcd1 Update process_creation_tool_nircmd_as_system.yml 2022-01-28 21:01:43 +01:00
Florian Roth 883040ee96 Merge pull request #2617 from SigmaHQ/aurora-false-positive-fixing
fix: FPs noticed with Aurora
2022-01-28 18:06:39 +01:00
Florian Roth 0391cffab4 Merge pull request #2616 from SigmaHQ/rule-devel
rule: xordump
2022-01-28 18:06:21 +01:00
Florian Roth 7b05827326 fix: FPs noticed with Aurora 2022-01-28 17:26:51 +01:00
Florian Roth bfee0f8067 rule: xordump 2022-01-28 17:26:12 +01:00
frack113 5b30db61b0 Add windows redcannary rules 2022-01-28 16:12:38 +01:00
Florian Roth a5cb3ba37f Merge pull request #2598 from SigmaHQ/rule-devel
rules: NirCmd, NSudo, RunX
2022-01-28 12:18:15 +01:00
frack113 9a517bae7c Merge pull request #2614 from frack113/update_ref
sysmon_proxy_execution_wuauclt Update References
2022-01-28 11:51:45 +01:00
Florian Roth 982808c3db refactor: whoami / authority, rule: whoami as trusted installer 2022-01-28 11:30:30 +01:00
frack113 a6e3b4691b Update References 2022-01-28 10:30:39 +01:00
frack113 d4b4d4e382 Merge pull request #2612 from glennbarrett/patch-1
Typo fix in win_plugx_susp_exe_locations.yml
2022-01-28 10:00:07 +01:00
frack113 069d4ac8bd Update modified 2022-01-28 09:09:26 +01:00
frack113 4ef359a96f Merge pull request #2611 from redsand/fp_for_iexplorer
adding filter for fp of iexplorer calling cpl
2022-01-28 06:59:35 +01:00
Glenn Barrett edb769b086 Typo fix in win_plugx_susp_exe_locations.yml
Change SysWowo64 to SysWow64
2022-01-27 15:08:54 -05:00
frack113 1431992e4e Merge pull request #2604 from frack113/add_ps_version
add posh_ps_clear_powershell_history
2022-01-27 18:24:37 +01:00
Tim Shelton f8ce6d87a8 adding filter for fp of iexplorer calling cpls: C:\Windows\system32\rundll32.exe C:\Windows\system32\inetcpl.cpl,ClearMyTracksByProcess Flags:276824072 WinX:0 WinY:0 IEFrame:0000000000000000 2022-01-27 16:31:37 +00:00
Florian Roth a8cbfa832d Merge pull request #2609 from SigmaHQ/aurora-false-positive-fixing
fix: too many false positives with certain access masks
2022-01-27 16:53:34 +01:00
frack113 1aa7697ca8 Update posh_ps_clear_powershell_history.yml 2022-01-27 16:16:57 +01:00
frack113 79de1631de Merge pull request #2601 from secDre4mer/master
fix: Add filter for empty image to rule
2022-01-27 16:16:06 +01:00
Florian Roth 82d5f4a511 fix: too many false positives with certain access masks 2022-01-27 09:08:40 +01:00
Florian Roth d52602dd5e Update posh_ps_clear_powershell_history.yml 2022-01-26 18:09:09 +01:00
Florian Roth feedcee6bf Update posh_ps_clear_powershell_history.yml 2022-01-26 17:57:26 +01:00
Florian Roth e08e8dd3d4 Update sysmon_process_hollowing.yml 2022-01-26 17:53:46 +01:00
mhaag-spl b3b37719e7 Update sysmon_lsass_memdump.yml
Updated Sysmon Lsass Memdump to detect other memory dumping techniques from mimikatz, nanodump, invoke-mimikatz, and so forth. This adds additional GrantedAccess permissions and adds ntdll.dll to CallTrace. Tested with Atomic Red Team T1003.001, MimiKatz, Invoke-Mimikatz and Cobalt Strike.
2022-01-26 08:12:49 -07:00
securepeacock 364b5c9620 Create sysmon_process_hollowing.yml
Closed old request, and put rule into its appropriate file directory.
2022-01-25 15:57:03 -05:00
securepeacock 1cfa06e6e6 Update process_creation_rundll32_not_from_c_drive.yml 2022-01-25 14:43:30 -05:00
securepeacock 076b0c9246 Create process_creation_rundll32_not_from_c_drive.yml
Sample Log:

Process Create: RuleName: - UtcTime: 2022-01-25 17:12:12.156 ProcessGuid: {A931971D-2F6C-61F0-D700-000000005200} ProcessId: 724 Image: C:\Windows\notepad.exe FileVersion: 10.0.14393.0 (rs1_release.160715-1616) Description: Notepad Product: Microsoft® Windows® Operating System Company: Microsoft Corporation OriginalFileName: NOTEPAD.EXE CommandLine: "c:\windows\notepad.exe" CurrentDirectory: E:\ User: WINDOMAIN\vagrant LogonGuid: {A931971D-283E-61F0-3DF7-080000000000} LogonId: 0x8F73D TerminalSessionId: 1 IntegrityLevel: Medium Hashes: SHA1=40F2E778CF1EFFA957C719D2398E641EFF20E613,MD5=3B508CAE5DEBCBA928B5BC355517E2E6,SHA256=DA0ACEE8F60A460CFB5249E262D3D53211EBC4C777579E99C8202B761541110A,IMPHASH=968239BE2020F1C0DAFFDCDBD49E9C82 ParentProcessGuid: {A931971D-2F57-61F0-D600-000000005200} ParentProcessId: 936 ParentImage: C:\Windows\System32\rundll32.exe ParentCommandLine: "C:\Windows\System32\rundll32.exe" SharedFiles.dll,BasicScore ParentUser: WINDOMAIN\vagrant
2022-01-25 14:42:13 -05:00
frack113 a68cf58264 Merge pull request #2596 from frack113/blackbyte
Add win_re_blackbyte_ransomware
2022-01-25 20:39:05 +01:00
frack113 818b20b949 add posh_ps_clear_powershell_history 2022-01-25 19:58:18 +01:00
Max Altgelt 51d9aca239 chore: update modified date 2022-01-25 11:46:16 +01:00