Commit Graph

25 Commits

Author SHA1 Message Date
github-actions[bot] 64852d95a9 Merge PR #5216 from @nasbench - Promote older rules status from experimental to test
Co-authored-by: nasbench <nasbench@users.noreply.github.com>
2025-03-05 00:23:27 +01:00
Florian Roth 5711c8a2f4 Merge PR #5215 from @Neo23x0 - Fix typo in falsepositives section
chore: fix typo in falsepositive section
2025-02-28 15:49:36 +01:00
Fukusuke Takahashi 132482818e Merge PR #5007 from @fukusuket - Fix unreachable GitHub URL references
chore: CVE-2021-1675 Print Spooler Exploitation Filename Pattern - Fix unreachable GitHub URL references
chore: HackTool - DInjector PowerShell Cradle Execution - Fix unreachable GitHub URL references
chore: InstallerFileTakeOver LPE CVE-2021-41379 File Create Event - Fix unreachable GitHub URL references
chore: LPE InstallerFileTakeOver PoC CVE-2021-41379  - Fix unreachable GitHub URL references
chore: Malicious PowerShell Scripts - FileCreation - Fix unreachable GitHub URL references
chore: Malicious PowerShell Scripts - PoshModule - Fix unreachable GitHub URL references
chore: Possible CVE-2021-1675 Print Spooler Exploitation - Fix unreachable GitHub URL references
chore: Potential NT API Stub Patching - Fix unreachable GitHub URL references
chore: Potential PrintNightmare Exploitation Attempt - Fix unreachable GitHub URL references
chore: Potential RDP Exploit CVE-2019-0708 - Fix unreachable GitHub URL references
chore: Potential SAM Database Dump - Fix unreachable GitHub URL references
chore: Scanner PoC for CVE-2019-0708 RDP RCE Vuln - Fix unreachable GitHub URL references
chore: Suspicious Rejected SMB Guest Logon From IP - Fix unreachable GitHub URL references
chore: Windows Spooler Service Suspicious Binary Load - Fix unreachable GitHub URL references
2024-09-13 11:14:11 +02:00
secDre4mer 9b39e26260 Merge PR #4995 from @secDre4mer - Add Process Deletion of Its Own Executable
new: Process Deletion of Its Own Executable 

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Co-authored-by: nasbench <8741929+nasbench@users.noreply.github.com>
2024-09-03 22:20:20 +02:00
Nasreddine Bencherchali 598d29f811 Merge PR #4950 from @nasbench - Comply With v2 Spec Changes
chore: change tags, date, modified fields to comply with v2 of the Sigma spec.
chore: update the related type from `obsoletes` to `obsolete`.
chore: update local json schema to the latest version.
2024-08-12 12:02:50 +02:00
Nasreddine Bencherchali 481337a8c3 Merge PR #4837 from @nasbench - fix fp reported in #4820
fix: ADS Zone.Identifier Deleted By Uncommon Application - Filter out "chrome" and "firefox" processes.
2024-04-26 15:39:44 +02:00
security-companion ba2baa1cec Merge PR #4776 from @security-companion - Fix broken reference links
chore: fix some broken reference links

Thanks: @security-companion
2024-03-21 02:38:12 +01:00
Nasreddine Bencherchali be359ef3f2 Merge PR #4681 from @nasbench - Add Missing Ref & Tags
Create Release / Create Release (push) Has been cancelled
fix: Kerberos Manipulation - Update field to use Status instead of incorrect "FailureCode"
fix: Metasploit SMB Authentication - Remove unnecessary field
fix: Service Installation in Suspicious Folder - Update FP filter
update: Malicious PowerShell Commandlets - ProcessCreation - "Start-Dnscat2"
remove: Dnscat Execution - Deprecated in favour of an integration in the "Malicious PowerShell Cmdlet" type of rules
remove: SAM Dump to AppData
update: Critical Hive In Suspicious Location Access Bits Cleared - Enhance metadata and logic
update: Malicious PowerShell Commandlets - PoshModule - "Start-Dnscat2"
update: Malicious PowerShell Commandlets - ScriptBlock - "Start-Dnscat2"
update: Malicious PowerShell Scripts - FileCreation - Add "dnscat2.ps1"
update: Malicious PowerShell Scripts - PoshModule - Add "dnscat2.ps1"
update: Monitoring For Persistence Via BITS - Use "Image" and "OriginalFileName" fields instead of CLI only
update: New or Renamed User Account with '$' Character - Reduced level to "medium"
update: New Process Created Via Taskmgr.EXE - Added full paths to the filtered binaries to decrease false negatives
update: Potential Dropper Script Execution Via WScript/CScript - Re-wrote the logic by removing the paths "C:\Users" and "C:\ProgramData". As these are very common and will generate high FP rate. Instead switched the paths to a more robust list and extended the list of extension covered. Also reduced the level to "medium"
update: Potential Fake Instance Of Hxtsr.EXE Executed - Remove "C:" prefix from detection logic
update: Prefetch File Deleted - Update selection to remove 'C:' prefix
update: Sensitive File Access Via Volume Shadow Copy Backup - Made the rule more generic by updating the title and removing the IOC from conti. (will be added in a dedicated rule)
update: Shell Process Spawned by Java.EXE - Add "bash.exe"
update: Suspicious PowerShell Download - Powershell Script - Add "DownloadFileAsync" and "DownloadStringAsync" functions
update: Suspicious Processes Spawned by Java.EXE - Remove "bash.exe" as its doesn't fit the logic
update: Sysmon Application Crashed - Add 32bit version of sysmon binary
update: Tap Driver Installation - Security - Reduce level to "low"
update: Write Protect For Storage Disabled - Remove "storagedevicepolicies" as the string "storage" already covers it

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Co-authored-by: phantinuss <79651203+phantinuss@users.noreply.github.com>
2024-01-29 13:37:20 +01:00
github-actions[bot] c3fe2da997 chore: promote older rules status from experimental to test (#4651)
Co-authored-by: nasbench <nasbench@users.noreply.github.com>
2024-01-01 09:00:51 +01:00
github-actions[bot] a6e7cce606 Merge PR #4533 from @nasbench - Promote experimental rules
chore: promote older rules status from `experimental` to `test`

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Co-authored-by: nasbench <8741929+nasbench@users.noreply.github.com>
2023-11-02 10:48:45 +01:00
Nasreddine Bencherchali edf0ff5cc8 Merge PR #4491 from @nasbench - Rule Updates & Fixes
new: Lazarus APT DLL Sideloading Activity
new: File Download From IP Based URL Via CertOC.EXE
new: File Download From IP URL Via Curl.EXE
update: Remote Thread Creation By Uncommon Source Image
update: Remote Thread Creation In Uncommon Target Image
update: ADSI-Cache File Creation By Uncommon Tool
update: Files With System Process Name In Unsuspected Locations
update: PowerShell Module File Created By Non-PowerShell Process
update: PSScriptPolicyTest Creation By Uncommon Process
update: Suspicious LNK Double Extension File Created
update: PowerShell Profile Modification
update: Alternate PowerShell Hosts Pipe
update: File Download via CertOC.EXE
update: Suspicious File Download From IP Via Curl.EXE
update: Arbitrary File Download Via GfxDownloadWrapper.EXE
update: Potentially Suspicious Office Document Executed From Trusted Location

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Co-authored-by: phantinuss <79651203+phantinuss@users.noreply.github.com>
2023-10-23 10:35:57 +02:00
frack113 5884d9afd1 Merge PR #4419 from @frack113 - New Rules Related To Zone.Identifier ADS Deletion
new: ADS Zone.Identifier Deleted
new: ADS Zone.Identifier Deleted By Uncommon Application

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Signed-off-by: frack113 <62423083+frack113@users.noreply.github.com>
Co-authored-by: Nasreddine Bencherchali <8741929+nasbench@users.noreply.github.com>
Co-authored-by: phantinuss <79651203+phantinuss@users.noreply.github.com>
2023-09-06 11:44:39 +02:00
Nasreddine Bencherchali f0afc4cce6 fix: apply suggestions from code review
Co-authored-by: phantinuss <79651203+phantinuss@users.noreply.github.com>
2023-02-20 12:06:37 +01:00
Nasreddine Bencherchali 6a0b38291f fix: fp found in baseline 2023-02-17 23:16:42 +01:00
Nasreddine Bencherchali 1dba328ddc fix: add missing modified 2023-02-17 22:52:09 +01:00
Nasreddine Bencherchali 68c052aab7 feat: updates and fixes 2023-02-17 17:51:44 +01:00
Nasreddine Bencherchali a19a75b0b0 fix: resolves #4015 2023-02-07 14:33:56 +01:00
Nasreddine Bencherchali 7c38a5c496 chore: add nextron authors tag 2023-02-01 11:14:59 +01:00
frack113 1033b3f404 change status to test 2023-01-27 06:48:34 +01:00
frack113 cb67871bd2 Revert "Change status of old rules" 2023-01-26 19:37:18 +01:00
frack113 5323fd4baa Change status of old rules 2023-01-25 18:41:18 +01:00
frack113 aee5ca7afc Fix invalid field cast or name (#3841) 2022-12-30 11:46:21 +01:00
Nasreddine Bencherchali efe0cf5871 Add/Update Exchange/Mailbox Rules 2022-10-26 23:17:54 +02:00
frack113 fac6732827 Order yaml field 2022-10-26 06:16:30 +02:00
frack113 3cc42cfe61 Move file category rules 2022-10-13 13:25:05 +02:00