🔥 Antivirus Bypass using Code Signing 🔥
Code signing is a method software publishers use to authenticate the programs they distribute to end-users. Basically, a code-signed program tells the end-user and an end-user’s computer that the program being installed/executed is from a legitimate software publisher.
Digitally signed malware can bypass system protection mechanisms that install or launch only programs with valid signatures
You can use the SignTool to sign file with a valid certificate Go Daddy.
For example:
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#av #bypass #ev #signing #code
Code signing is a method software publishers use to authenticate the programs they distribute to end-users. Basically, a code-signed program tells the end-user and an end-user’s computer that the program being installed/executed is from a legitimate software publisher.
Digitally signed malware can bypass system protection mechanisms that install or launch only programs with valid signatures
You can use the SignTool to sign file with a valid certificate Go Daddy.
For example:
signtool.exe sign /f t.me_secdevoops.pfx /p "*Aspider#" /t http://timestamp.digicert.com .\yourfile
.exe
This allows you to digitally sign PE binaries such as .exe, .cab, .dll, .ocx, .msi, .xpi and .xap files.Don't forget to share and subscribe
#av #bypass #ev #signing #code
Bypass AV via Change Filenames/Extension
You need to change the files extension:
#av #evasion #extension #file
You need to change the files extension:
.eyb files as .exe .faq files as .dll
Use the following commands: reg add HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.eyb /f /ve /t REG_SZ /d exefileThis can also work on other security solutions and for many other blacklisted techniques.
reg add HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.eyb /f /v "Content Type" /t REG_SZ /d "application/x-msdownload"
#av #evasion #extension #file
Process Ghosting — EDR Evasion
The technique Process Herpaderping attempts to perform evasion by performing modification of the file (image tampering) which creates the process on a windows system. Deleting also the file during the creation of the process can have the same results. Even though some endpoint products have mature over the years and are able to detect complex threats organizations should constantly test the capabilities of their solution and should find alternate methods of detection even for the same technique.
https://pentestlaboratories.com/2021/12/08/process-ghosting/
#av #evasion #process #redteam #blueteam
The technique Process Herpaderping attempts to perform evasion by performing modification of the file (image tampering) which creates the process on a windows system. Deleting also the file during the creation of the process can have the same results. Even though some endpoint products have mature over the years and are able to detect complex threats organizations should constantly test the capabilities of their solution and should find alternate methods of detection even for the same technique.
https://pentestlaboratories.com/2021/12/08/process-ghosting/
#av #evasion #process #redteam #blueteam
Pentest Laboratories
Process Ghosting
Understanding how endpoint products work to identify malicious actions can lead to the discovery of security gaps which can be used for evasion during red team operations. The technique Process Her…
Bypass AV & Advanced XDR solutions
Mortar Loader is able to bypass modern anti-virus products and advanced XDR solutions and it has been tested and confirmed bypass for the following:
— Kaspersky
— ESET
— Malewarebytes
— Mcafee
— Cortex XDR
— Windows defender
— Cylance
Research:
https://0xsp.com/security%20research%20&%20development%20(SRD)/defeat-the-castle-bypass-av-advanced-xdr-solutions
Source:
https://github.com/0xsp-SRD/mortar
#av #xdr #evasion #redteam
Mortar Loader is able to bypass modern anti-virus products and advanced XDR solutions and it has been tested and confirmed bypass for the following:
— Kaspersky
— ESET
— Malewarebytes
— Mcafee
— Cortex XDR
— Windows defender
— Cylance
Research:
https://0xsp.com/security%20research%20&%20development%20(SRD)/defeat-the-castle-bypass-av-advanced-xdr-solutions
Source:
https://github.com/0xsp-SRD/mortar
#av #xdr #evasion #redteam
Quick & Lazy Malware Development
https://capt-meelo.github.io//redteam/maldev/2021/12/15/lazy-maldev.html
#malware #av #evasion #redteam
https://capt-meelo.github.io//redteam/maldev/2021/12/15/lazy-maldev.html
#malware #av #evasion #redteam
Hack.Learn.Share
Quick & Lazy Malware Development
Quickly and lazily write malware from the perspective of a newbie and someone who has very basic programming skills.
PSSW100AVB
This is the PSSW100AVB (Powershell Scripts With 100% AV Bypass) Framework.
A list of useful Powershell scripts with 100% AV bypass ratio. (At the time of publication).
Latest Reverse shell tested on Windows 11 (ReverseShell_2022_03.ps1)
https://github.com/tihanyin/PSSW100AVB
#av #evasion #amsi #powershell #ps1
This is the PSSW100AVB (Powershell Scripts With 100% AV Bypass) Framework.
A list of useful Powershell scripts with 100% AV bypass ratio. (At the time of publication).
Latest Reverse shell tested on Windows 11 (ReverseShell_2022_03.ps1)
https://github.com/tihanyin/PSSW100AVB
#av #evasion #amsi #powershell #ps1
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In-Process Patchless AMSI Bypass
https://ethicalchaos.dev/2022/04/17/in-process-patchless-amsi-bypass/
#amsi #bypass #av #evasion
https://ethicalchaos.dev/2022/04/17/in-process-patchless-amsi-bypass/
#amsi #bypass #av #evasion
Ethical Chaos
In-Process Patchless AMSI Bypass - Ethical Chaos
Some of you may remember my patchless AMSI bypass article and how it was used inside SharpBlock to bypass AMSI on the child process that SharpBlock spawns. This is all well a good when up against client environments that are not too sensitive to the fork…
A blueprint for evading industry leading endpoint protection in 2022
In this post, I’d like to lay out a collection of techniques that together can be used to bypassed industry leading enterprise endpoint protection solutions. This is purely for educational purposes for (ethical) red teamers and alike, so I’ve decided not to publicly release the source code. The aim for this post is to be accessible to a wide audience in the security industry, but not to drill down to the nitty gritty details of every technique. Instead, I will refer to writeups of others that deep dive better than I can:
https://vanmieghem.io/blueprint-for-evading-edr-in-2022/
#av #edr #evasion #research
In this post, I’d like to lay out a collection of techniques that together can be used to bypassed industry leading enterprise endpoint protection solutions. This is purely for educational purposes for (ethical) red teamers and alike, so I’ve decided not to publicly release the source code. The aim for this post is to be accessible to a wide audience in the security industry, but not to drill down to the nitty gritty details of every technique. Instead, I will refer to writeups of others that deep dive better than I can:
https://vanmieghem.io/blueprint-for-evading-edr-in-2022/
#av #edr #evasion #research
💉 From Process Injection to Function Hijacking
This post about FunctionHijacking, a "new" process injection technique built upon Module/Function Stomping, along with experiments to break behavioral based detection of other common process injection techniques.
https://klezvirus.github.io/RedTeaming/AV_Evasion/FromInjectionToHijacking/
#av #evasion #maldev #redteam #research
This post about FunctionHijacking, a "new" process injection technique built upon Module/Function Stomping, along with experiments to break behavioral based detection of other common process injection techniques.
https://klezvirus.github.io/RedTeaming/AV_Evasion/FromInjectionToHijacking/
#av #evasion #maldev #redteam #research
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🛠 API Unhooking with Perun's Fart
An article about a new method of avoiding AV/EDR by creating a process in a suspended state and getting a copy of the ntdll from the new process before it is hijacked by AV/EDR.
Research:
https://dosxuz.gitlab.io/post/perunsfart/
PoC:
https://github.com/dosxuz/PerunsFart
#av #edr #evasion #api #unhooking #resarch
An article about a new method of avoiding AV/EDR by creating a process in a suspended state and getting a copy of the ntdll from the new process before it is hijacked by AV/EDR.
Research:
https://dosxuz.gitlab.io/post/perunsfart/
PoC:
https://github.com/dosxuz/PerunsFart
#av #edr #evasion #api #unhooking #resarch
dosxuz.gitlab.io
API Unhooking with Perun's Fart
Pre-requisites To fully understand this topic, one needs to have some knowledge about the following concepts:
Little bit of C++ programming Some knowledge of API hooking by AV/EDR software Basic understanding of the PE structures Basic knowledge about Win32…
Little bit of C++ programming Some knowledge of API hooking by AV/EDR software Basic understanding of the PE structures Basic knowledge about Win32…
🦠 Mangle
Mangle is a tool that manipulates aspects of compiled executables (.exe or DLL). Mangle can remove known Indicators of Compromise (IoC) based strings and replace them with random characters, change the file by inflating the size to avoid EDRs, and can clone code-signing certs from legitimate files. In doing so, Mangle helps loaders evade on-disk and in-memory scanners.
https://github.com/optiv/Mangle
#av #edr #memory #evasion #redteam
Mangle is a tool that manipulates aspects of compiled executables (.exe or DLL). Mangle can remove known Indicators of Compromise (IoC) based strings and replace them with random characters, change the file by inflating the size to avoid EDRs, and can clone code-signing certs from legitimate files. In doing so, Mangle helps loaders evade on-disk and in-memory scanners.
https://github.com/optiv/Mangle
#av #edr #memory #evasion #redteam
GitHub
GitHub - optiv/Mangle: Mangle is a tool that manipulates aspects of compiled executables (.exe or DLL) to avoid detection from…
Mangle is a tool that manipulates aspects of compiled executables (.exe or DLL) to avoid detection from EDRs - optiv/Mangle
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💉 Dirty Vanity — A New Approach to Code injection & EDR bypass
A POC for the new injection technique, abusing windows fork API to evade EDRs.
Source:
https://github.com/deepinstinct/Dirty-Vanity
Research:
https://i.blackhat.com/EU-22/Thursday-Briefings/EU-22-Nissan-DirtyVanity.pdf
#av #edr #bypass #injection #fork #api
A POC for the new injection technique, abusing windows fork API to evade EDRs.
Source:
https://github.com/deepinstinct/Dirty-Vanity
Research:
https://i.blackhat.com/EU-22/Thursday-Briefings/EU-22-Nissan-DirtyVanity.pdf
#av #edr #bypass #injection #fork #api
GitHub
GitHub - deepinstinct/Dirty-Vanity: A POC for the new injection technique, abusing windows fork API to evade EDRs. https://www…
A POC for the new injection technique, abusing windows fork API to evade EDRs. https://www.blackhat.com/eu-22/briefings/schedule/index.html#dirty-vanity-a-new-approach-to-code-injection--edr-bypass...
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🥶 Freeze
Freeze.rs is a payload creation tool used for circumventing EDR security controls to execute shellcode in a stealthy manner. Freeze.rs utilizes multiple techniques to not only remove Userland EDR hooks, but to also execute shellcode in such a way that it circumvents other endpoint monitoring controls.
Research:
https://www.optiv.com/insights/source-zero/blog/sacrificing-suspended-processes
Source:
https://github.com/optiv/Freeze.rs
#av #edr #etw #windows #maldev
Freeze.rs is a payload creation tool used for circumventing EDR security controls to execute shellcode in a stealthy manner. Freeze.rs utilizes multiple techniques to not only remove Userland EDR hooks, but to also execute shellcode in such a way that it circumvents other endpoint monitoring controls.
Research:
https://www.optiv.com/insights/source-zero/blog/sacrificing-suspended-processes
Source:
https://github.com/optiv/Freeze.rs
#av #edr #etw #windows #maldev
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🦾 SharpTerminatator
Terminate AV/EDR Processes using kernel driver. SharpTerminatator is a C# port of ZeroMemoryEx's art piece called Terminator. It can be used with Cobalt Strike's execute-assembly or as a standalone executable.
https://github.com/mertdas/SharpTerminator
#av #edr #cobaltstrike #csharp
Terminate AV/EDR Processes using kernel driver. SharpTerminatator is a C# port of ZeroMemoryEx's art piece called Terminator. It can be used with Cobalt Strike's execute-assembly or as a standalone executable.
https://github.com/mertdas/SharpTerminator
#av #edr #cobaltstrike #csharp
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🎯 Meterpreter vs Modern EDR
This blog post explains how making minor adjustments to the Meterpreter shellcode dropper can effectively evade modern EDRs. Three modifications are employed on the Meterpreter reference dropper. These modifications involve encrypting the Meterpreter shellcode using the XOR algorithm, incorporating valid metadata via a manifest file, and relocating the Meterpreter shellcode from the .text section to the .data section.
https://redops.at/en/blog/meterpreter-vs-modern-edrs-in-2023
#av #edr #meterpreter #xor #cpp
This blog post explains how making minor adjustments to the Meterpreter shellcode dropper can effectively evade modern EDRs. Three modifications are employed on the Meterpreter reference dropper. These modifications involve encrypting the Meterpreter shellcode using the XOR algorithm, incorporating valid metadata via a manifest file, and relocating the Meterpreter shellcode from the .text section to the .data section.
https://redops.at/en/blog/meterpreter-vs-modern-edrs-in-2023
#av #edr #meterpreter #xor #cpp
RedOps - English
Meterpreter vs Modern EDR(s) - RedOps
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⛓ Divide and Rule — AMSI Bypass
By spliiting well known PowerShell scripts, e.g. an AMSI Bypass, we can directly bypass Windows Defender or get at least the line, where the detection occurs. Outcome: Several AMSI Bypasses and two scripts:
- One to split PowerShell snippets in multiple lines
- A second script to run all the files in an Oneliner, XOR obfuscated
https://badoption.eu/blog/2023/07/15/divideconqer.html
#amsi #av #bypass #powershell
By spliiting well known PowerShell scripts, e.g. an AMSI Bypass, we can directly bypass Windows Defender or get at least the line, where the detection occurs. Outcome: Several AMSI Bypasses and two scripts:
- One to split PowerShell snippets in multiple lines
- A second script to run all the files in an Oneliner, XOR obfuscated
https://badoption.eu/blog/2023/07/15/divideconqer.html
#amsi #av #bypass #powershell
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🌀Voidgate
A technique that can be used to bypass AV/EDR memory scanners. This can be used to hide well-known and detected shellcodes by performing on-the-fly decryption of individual encrypted assembly instructions, thus rendering memory scanners useless for that specific memory page.
🔗 Source
https://github.com/vxCrypt0r/Voidgate
#av #edr #evasion #hwbp #cpp
A technique that can be used to bypass AV/EDR memory scanners. This can be used to hide well-known and detected shellcodes by performing on-the-fly decryption of individual encrypted assembly instructions, thus rendering memory scanners useless for that specific memory page.
🔗 Source
https://github.com/vxCrypt0r/Voidgate
#av #edr #evasion #hwbp #cpp
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🛡CreateProcessAsPPL
This is a utility for running processes with Protected Process Light (PPL) protection, enabling bypass of EDR/AV solution defensive mechanisms. It leverages legitimate Windows clipup.exe functionality from System32 to create protected processes that can overwrite antivirus service executable files.
🔗 Source:
https://github.com/2x7EQ13/CreateProcessAsPPL
🔗 Research:
https://www.zerosalarium.com/2025/08/countering-edrs-with-backing-of-ppl-protection.html
#av #edr #bypass #ppl
This is a utility for running processes with Protected Process Light (PPL) protection, enabling bypass of EDR/AV solution defensive mechanisms. It leverages legitimate Windows clipup.exe functionality from System32 to create protected processes that can overwrite antivirus service executable files.
🔗 Source:
https://github.com/2x7EQ13/CreateProcessAsPPL
🔗 Research:
https://www.zerosalarium.com/2025/08/countering-edrs-with-backing-of-ppl-protection.html
#av #edr #bypass #ppl
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