PoolParty - A Set Of Fully-Undetectable Process Injection Techniques Abusing Windows Thread Pools


A collection of fully-undetectable process injection techniques abusing Windows Thread Pools. Presented at Black Hat EU 2023 Briefings under the title - injection-techniques-using-windows-thread-pools-35446">The Pool Party You Will Never Forget: New Process Injection Techniques Using Windows Thread Pools


PoolParty Variants

Variant ID Varient Description
1 Overwrite the start routine of the target worker factory
2 Insert TP_WORK work item to the target process's thread pool
3 Insert TP_WAIT work item to the target process's thread pool
4 Insert TP_IO work item to the target process's thread pool
5 Insert TP_ALPC work item to the target process's thread pool
6 Insert TP_JOB work item to the target process's thread pool
7 Insert TP_DIRECT work item to the target process's thread pool
8 Insert TP_TIMER work item to the target process's thread pool

Usage

PoolParty.exe -V <VARIANT ID> -P <TARGET PID>

Usage Examples

Insert TP_TIMER work item to process ID 1234

>> PoolParty.exe -V 8 -P 1234[info]    Starting PoolParty attack against process id: 1234[info]    Retrieved handle to the target process: 00000000000000B8[info]    Hijacked worker factory handle from the target process: 0000000000000058[info]    Hijacked timer queue handle from the target process: 0000000000000054[info]    Allocated shellcode memory in the target process: 00000281DBEF0000[info]    Written shellcode to the target process[info]    Retrieved target worker factory basic information[info]    Created TP_TIMER structure associated with the shellcode[info]    Allocated TP_TIMER memory in the target process: 00000281DBF00000[info]    Written the specially crafted TP_TIMER structure to the target process[info]    Modified the target process's TP_POOL tiemr queue list entry to point to the specially crafted TP_TIMER[info]    Set the timer queue to expire to trigger the dequeueing TppTimerQueueExp   iration[info]    PoolParty attack completed successfully

Default Shellcode and Customization

The default shellcode spawns a calculator via the WinExec API.

To customize the executable to execute, change the path in the end of the g_Shellcode variable present in the main.cpp file.

Author - Alon Leviev




Source: www.kitploit.com
PoolParty - A Set Of Fully-Undetectable Process Injection Techniques Abusing Windows Thread Pools PoolParty - A Set Of Fully-Undetectable Process Injection Techniques Abusing Windows Thread Pools Reviewed by Zion3R on 10:59 AM Rating: 5