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DFIR

Table of Contents

Resources

Name Description URL
CheckPhish Free Phishing Link Checker & Site URL Scanning https://checkphish.bolster.ai
dnstwist phishing domain scanner https://dnstwist.it
Fenrir Simple Bash IOC Scanner https://github.com/Neo23x0/Fenrir
FIR Fast Incident Response https://github.com/certsocietegenerale/FIR
IRIS Collaborative Incident Response platform https://github.com/dfir-iris/iris-web
Loki Loki - Simple IOC and Incident Response Scanner https://github.com/Neo23x0/Loki
packetSifter PacketSifter is a tool/script that is designed to aid analysts in sifting through a packet capture (pcap) to find noteworthy traffic. Packetsifter accepts a pcap as an argument and outputs several files. https://github.com/packetsifter/packetsifterTool
PhishStats Fighting phishing and cybercrime since 2014 by gathering, enhancing and sharing phishing information with the infosec community. https://phishstats.info
PhishTank Join the fight against phishing https://phishtank.org
Simple Email Reputation EmailRep Alpha Risk API https://emailrep.io
TheHive TheHive: a Scalable, Open Source and Free Security Incident Response Platform https://github.com/TheHive-Project/TheHive
ThePhish ThePhish: an automated phishing email analysis tool https://github.com/emalderson/ThePhish
Volexity Memory Forensics, Memory Analysis and Cybersecurity Services https://www.volexity.com

Sniffing SSH Sessions

$ strace -e trace=read -p <PID> 2>&1 | while read x; do echo "$x" | grep '^read.*= [1-9]$' | cut -f2 -d\"; done

Wireshark

Filters

ip.addr == <RHOST>                           // shows all packets involving the specific IP address
tcp.port == <RPORT>                          // shows only port XYZ
dns                                          // isolates DNS traffic
http.request.uir contains "login"            // find HTTP requests with "login" in the URL
ntlmssp.auth.username                        // shows used usernames
dcerpc.opnum == 0                            // shows when the eventlog got cleared
frame contains 5c:00:50:00:49:00:50:00:45    // shows frames with a named pipes
smb2.filename contains ".exe"                // smb filtering on .exe files

Logical Operators

  • AND (&&): ip.addr == <RHOST> && tcp.port == <RPORT>
  • OR (||): HTTP || FTP
  • NOT (!): !arp