policy/frameworks/software/windows-version-detection.bro

OS

Windows systems access a Microsoft Certificate Revocation List (CRL) periodically. The user agent for these requests reveals which version of Crypt32.dll installed on the system, which can uniquely identify the version of Windows that’s running.

This script will log the version of Windows that was identified to the Software framework.

Namespace:OS
Imports:base/frameworks/software, base/protocols/http
Source File:/scripts/policy/frameworks/software/windows-version-detection.bro

Summary

Redefinable Options

OS::crypto_api_mapping: table &redef  

Redefinitions

Software::Type: enum  

Detailed Interface

Redefinable Options

OS::crypto_api_mapping
Type:table [string] of Software::name_and_version
Attributes:&redef
Default:
{
   ["Microsoft-CryptoAPI/6.2"] = [name="Windows", version=[major=6, minor=2, minor2=<uninitialized>, minor3=<uninitialized>, addl="8 or Server 2012"]],
   ["Microsoft-CryptoAPI/5.131.2600.3311"] = [name="Windows", version=[major=5, minor=131, minor2=2600, minor3=3311, addl="XP SP3 RC2 Update"]],
   ["Microsoft-CryptoAPI/5.131.2600.3180"] = [name="Windows", version=[major=5, minor=131, minor2=2600, minor3=3180, addl="XP SP3 Beta 1"]],
   ["Microsoft-CryptoAPI/10.0"] = [name="Windows", version=[major=10, minor=0, minor2=<uninitialized>, minor3=<uninitialized>, addl=<uninitialized>]],
   ["Microsoft-CryptoAPI/5.131.3790.3959"] = [name="Windows", version=[major=5, minor=131, minor2=3790, minor3=3959, addl="XP x64 or Server 2003 SP2"]],
   ["Microsoft-CryptoAPI/5.131.3790.5235"] = [name="Windows", version=[major=5, minor=131, minor2=3790, minor3=5235, addl="XP x64 or Server 2003 with MS13-095"]],
   ["Microsoft-CryptoAPI/5.131.2600.1106"] = [name="Windows", version=[major=5, minor=131, minor2=2600, minor3=1106, addl="XP SP1"]],
   ["Microsoft-CryptoAPI/5.131.2600.3282"] = [name="Windows", version=[major=5, minor=131, minor2=2600, minor3=3282, addl="XP SP3 RC1 Update"]],
   ["Microsoft-CryptoAPI/5.131.3790.0"] = [name="Windows", version=[major=5, minor=131, minor2=3790, minor3=0, addl="XP x64 or Server 2003 SP0"]],
   ["Microsoft-CryptoAPI/5.131.3790.1830"] = [name="Windows", version=[major=5, minor=131, minor2=3790, minor3=1830, addl="XP x64 or Server 2003 SP1"]],
   ["Microsoft-CryptoAPI/5.131.2195.6661"] = [name="Windows", version=[major=5, minor=131, minor2=2195, minor3=6661, addl="2000 SP4"]],
   ["Microsoft-CryptoAPI/5.131.2600.0"] = [name="Windows", version=[major=5, minor=131, minor2=2600, minor3=0, addl="XP SP0"]],
   ["Microsoft-CryptoAPI/5.131.2600.5508"] = [name="Windows", version=[major=5, minor=131, minor2=2600, minor3=5508, addl="XP SP3 RC2 Update 2"]],
   ["Microsoft-CryptoAPI/6.3"] = [name="Windows", version=[major=6, minor=3, minor2=<uninitialized>, minor3=<uninitialized>, addl="8.1 or Server 2012 R2"]],
   ["Microsoft-CryptoAPI/5.131.2195.6926"] = [name="Windows", version=[major=5, minor=131, minor2=2195, minor3=6926, addl="2000 with Hotfix 98830"]],
   ["Microsoft-CryptoAPI/6.1"] = [name="Windows", version=[major=6, minor=1, minor2=<uninitialized>, minor3=<uninitialized>, addl="7 or Server 2008 R2"]],
   ["Microsoft-CryptoAPI/5.131.2600.3249"] = [name="Windows", version=[major=5, minor=131, minor2=2600, minor3=3249, addl="XP SP3 RC Beta"]],
   ["Microsoft-CryptoAPI/6.4"] = [name="Windows", version=[major=6, minor=4, minor2=<uninitialized>, minor3=<uninitialized>, addl="10 Technical Preview"]],
   ["Microsoft-CryptoAPI/5.131.2600.2180"] = [name="Windows", version=[major=5, minor=131, minor2=2600, minor3=2180, addl="XP SP2"]],
   ["Microsoft-CryptoAPI/5.131.2600.3205"] = [name="Windows", version=[major=5, minor=131, minor2=2600, minor3=3205, addl="XP SP3 Beta 2"]],
   ["Microsoft-CryptoAPI/5.131.2600.3264"] = [name="Windows", version=[major=5, minor=131, minor2=2600, minor3=3264, addl="XP SP3 RC1"]],
   ["Microsoft-CryptoAPI/5.131.2195.6824"] = [name="Windows", version=[major=5, minor=131, minor2=2195, minor3=6824, addl="2000 with MS04-11"]],
   ["Microsoft-CryptoAPI/5.131.2600.3300"] = [name="Windows", version=[major=5, minor=131, minor2=2600, minor3=3300, addl="XP SP3 RC2"]],
   ["Microsoft-CryptoAPI/5.131.2600.5512"] = [name="Windows", version=[major=5, minor=131, minor2=2600, minor3=5512, addl="XP SP3"]],
   ["Microsoft-CryptoAPI/6.0"] = [name="Windows", version=[major=6, minor=0, minor2=<uninitialized>, minor3=<uninitialized>, addl="Vista or Server 2008"]]
}

Types

Software::name_and_version
Type:

record

name: string

version: Software::Version

Copyright 2016, The Bro Project. Last updated on August 15, 2018. Created using Sphinx 1.7.5.