New technique I have discovered recently and give it a nickname (Chop chop) to perform lateral movement (https://www.kitploit.com/search/label/Lateral%20Movement) using windows (https://www.kitploit.com/search/label/Windows) services display name and WMI by smuggling the malicious binary as base64 chunks and automate the process using the TChopper tool.
How it works
the tool will get the file you willing to smuggle and encode the file as base64 into memory stream divide the length of each line to fit 150-250 character length (250 is maximum allowed space for service lpDisplayname parameter https://docs.microsoft.com/en-us/windows/win32/api/winsvc/nf-winsvc-createservicea). for chop chop attack it will create a unique service for each segmented chunk => start the service => then delete it to avoid duplicates (https://www.kitploit.com/search/label/Duplicates) or you can choose to only modify the service attack mode to be more faster and stable. later on, it will modify service lpbinarypath parameter with required command line (https://www.kitploit.com/search/label/Command%20Line) to grab service display name and pip out the results into tmp_payload.txt finally, after finishing delivering all chuncks of the file as base64, the tool will create another service to decode the content into valid executbale and run it while if you are conducting lateral movment using WMI technique you can also use Chopper to do that Tchopper will authenticate you session using WMI creation of multiple process and use powershell (https://www.kitploit.com/search/label/PowerShell) unique command to pip out each segment to c:\users\public\chop.enc create final process to use certutil to decode the content into binary and execute it
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How it works
the tool will get the file you willing to smuggle and encode the file as base64 into memory stream divide the length of each line to fit 150-250 character length (250 is maximum allowed space for service lpDisplayname parameter https://docs.microsoft.com/en-us/windows/win32/api/winsvc/nf-winsvc-createservicea). for chop chop attack it will create a unique service for each segmented chunk => start the service => then delete it to avoid duplicates (https://www.kitploit.com/search/label/Duplicates) or you can choose to only modify the service attack mode to be more faster and stable. later on, it will modify service lpbinarypath parameter with required command line (https://www.kitploit.com/search/label/Command%20Line) to grab service display name and pip out the results into tmp_payload.txt finally, after finishing delivering all chuncks of the file as base64, the tool will create another service to decode the content into valid executbale and run it while if you are conducting lateral movment using WMI technique you can also use Chopper to do that Tchopper will authenticate you session using WMI creation of multiple process and use powershell (https://www.kitploit.com/search/label/PowerShell) unique command to pip out each segment to c:\users\public\chop.enc create final process to use certutil to decode the content into binary and execute it
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KitPloit - PenTest & Hacking Tools
Leading source of security tools, hacking tools, cybersecurity and network security. Learn about new tools and updates in one place.
Usage
#chop chop mode
chopper.exe -s -u USERNAME -p PASSWORD -d DOMAIN -f BINARYLOCAL PATH
# chop chop done
chopper.exe -m -u USERNAME -p PASSWORD -d DOMAIN -f BINARYLOCAL PATH
# use WMI to smuggle
chopper.exe -w -u DOMAIN\USERNAME -p PASSWORD -t MACHINE -f LOCALBINARYPATH
https://youtu.be/xbvhzHul7w0
Detailed research
http://0xsp.com/security%20research%20&%20development%20(SRD)/smuggling-via-windows-services-display-name-lateral-movement
Download TChopper (https://github.com/lawrenceamer/TChopper)
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#chop chop mode
chopper.exe -s -u USERNAME -p PASSWORD -d DOMAIN -f BINARYLOCAL PATH
# chop chop done
chopper.exe -m -u USERNAME -p PASSWORD -d DOMAIN -f BINARYLOCAL PATH
# use WMI to smuggle
chopper.exe -w -u DOMAIN\USERNAME -p PASSWORD -t MACHINE -f LOCALBINARYPATH
https://youtu.be/xbvhzHul7w0
Detailed research
http://0xsp.com/security%20research%20&%20development%20(SRD)/smuggling-via-windows-services-display-name-lateral-movement
Download TChopper (https://github.com/lawrenceamer/TChopper)
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@hacking_Attack
@Hacking_Video
YouTube
Smuggling payload via Windows services display name - Lateral movement
conduct lateral movement attack by leveraging unfiltered services display name to smuggle binaries as chunks into the target machine
http://0xsp.com/security%20research%20&%20development%20(SRD)/smuggling-via-windows-services-display-name-lateral-movement
http://0xsp.com/security%20research%20&%20development%20(SRD)/smuggling-via-windows-services-display-name-lateral-movement
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