Merge PR #4681 from @nasbench - Add Missing Ref & Tags
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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>
This commit is contained in:
Nasreddine Bencherchali
2024-01-29 13:37:20 +01:00
committed by GitHub
parent 7f582c3d16
commit be359ef3f2
114 changed files with 482 additions and 342 deletions
@@ -25,8 +25,9 @@ references:
- https://github.com/samratashok/nishang
- https://github.com/DarkCoderSc/PowerRunAsSystem/
- https://github.com/besimorhino/powercat
author: frack113, Nasreddine Bencherchali
author: frack113, Nasreddine Bencherchali (Nextron Systems)
date: 2023/01/23
modified: 2024/01/25
tags:
- attack.execution
- attack.t1059.001
@@ -48,6 +49,7 @@ detection:
- 'Copy-VSS.ps1'
- 'Create-MultipleSessions.ps1'
- 'DNS_TXT_Pwnage.ps1'
- 'dnscat2.ps1'
- 'Do-Exfiltration.ps1'
- 'DomainPasswordSpray.ps1'
- 'Download_Execute.ps1'