olafhartong

<#
.SYNOPSIS
    Enumerates all registered URI/URL protocol handlers ("schemes") on a
    Windows endpoint and statically risk-scores them for potential
    execution-primitive abuse (cf. search-ms:, ms-officecmd:, and similar
    scheme-hijack findings).

.DESCRIPTION
    Does NOT invoke any handler. Purely reads HKEY_CLASSES_ROOT and
    HKEY_CURRENT_USER\Software\Classes for keys that carry the

olafhartong

# Sinkhole copilot

0.0.0.0 copilot.microsoft.com
0.0.0.0 cdp.copilot.microsoft.com
0.0.0.0 nochat.bing.com

olafhartong

#requires -version 5

<#
The things you find on Google searching for specific GUIDs...

Known Keyword friendly names:
"UTC:::CATEGORYDEFINITION.MS.CRITICALDATA":"140737488355328"
"UTC:::CATEGORYDEFINITION.MS.MEASURES":"70368744177664"
"UTC:::CATEGORYDEFINITION.MS.TELEMETRY":"35184372088832"
"UTC:::CATEGORYDEFINITION.MSWLAN.CRITICALDATA":"2147483648"

olafhartong

### USAGE:
###
### GetTracelogProviderSecurity.ps1 (to get all provider info)
###
### GetTracelogProviderSecurity.ps1 -ProviderName f2e68291-2367-5d51-3488-46f7a0e3f2cf 
### (to get the info for 1 provider guid)
##
# 
# Provider: f2e68291-2367-5d51-3488-46f7a0e3f2cf
# Control Flags: 45076

olafhartong

<manifest schemaversion="4.90" binaryversion="18">
  <configuration>
    <options>
      <!-- Command-line only options -->
      <option switch="i" name="Install" argument="optional" noconfig="true" exclusive="true" />
      <option switch="c" name="Configuration" argument="optional" noconfig="true" exclusive="true" />
      <option switch="u" name="UnInstall" argument="optional" noconfig="true" exclusive="true" />
      <option switch="m" name="Manifest" argument="none" noconfig="true" exclusive="true" />
      <option switch="z" name="ClipboardInstance" argument="required" noconfig="true" exclusive="true" />
      <option switch="t" name="DebugMode" argument="optional" noconfig="true" />

olafhartong

<Sysmon schemaversion="4.82">
   <EventFiltering>
      <RuleGroup name="" groupRelation="or">
         <FileBlockExecutable onmatch="include">
		<Image name="technique_id=T1105,technique_name=Ingress Tool Transfer" condition="image">excel.exe</Image>
		<Image name="technique_id=T1105,technique_name=Ingress Tool Transfer" condition="image">winword.exe</Image>
		<Image name="technique_id=T1105,technique_name=Ingress Tool Transfer" condition="image">powerpnt.exe</Image>
		<Image name="technique_id=T1105,technique_name=Ingress Tool Transfer" condition="image">outlook.exe</Image>
		<Image name="technique_id=T1105,technique_name=Ingress Tool Transfer" condition="image">msaccess.exe</Image>
		<Image name="technique_id=T1105,technique_name=Ingress Tool Transfer" condition="image">mspub.exe</Image>

olafhartong

<Sysmon schemaversion="4.82">
   <EventFiltering>
      <RuleGroup name="" groupRelation="or">
         <FileBlockExecutable onmatch="include">
            <TargetFilename condition="contains all">C:\Users;Downloads</TargetFilename>
         </FileBlockExecutable>
      </RuleGroup>
   </EventFiltering>
</Sysmon>

olafhartong

<manifest schemaversion="4.82" binaryversion="17">
  <configuration>
    <options>
      <!-- Command-line only options -->
      <option switch="i" name="Install" argument="optional" noconfig="true" exclusive="true" />
      <option switch="c" name="Configuration" argument="optional" noconfig="true" exclusive="true" />
      <option switch="u" name="UnInstall" argument="optional" noconfig="true" exclusive="true" />
      <option switch="m" name="Manifest" argument="none" noconfig="true" exclusive="true" />
      <option switch="z" name="ClipboardInstance" argument="required" noconfig="true" exclusive="true" />
      <option switch="t" name="DebugMode" argument="optional" noconfig="true" />

olafhartong

<Sysmon schemaversion="4.70">
  <EventFiltering>
    <RuleGroup name="" groupRelation="or">
            <ProcessCreate onmatch="exclude">
        <Rule name="" groupRelation="and">
          <Image condition="is">/usr/bin/groups</Image>
          <ParentImage condition="is">/usr/bin/bash</ParentImage>
        </Rule>
        <Rule name="" groupRelation="and">
          <Image condition="is">/usr/bin/locale-check</Image>

olafhartong

let serverlist=DeviceInfo
| where DeviceType != "Workstation"
| distinct DeviceId;
let suspiciousdrivers=DeviceImageLoadEvents
| where DeviceId in (serverlist)
| where FolderPath startswith @"c:\windows\system32\spool\drivers"
| distinct SHA1
| invoke FileProfile(SHA1, 1000) 
| where GlobalPrevalence < 50 and IsRootSignerMicrosoft != 1 and SignatureState != "SignedValid";
suspiciousdrivers