DFIR and Blue Team CTFs & Challenges

Free DFIR, OSINT & Blue Team CTFs and Challenges

This category tests your existing knowledge.

For training with hands-on labs, visit any of the categories on the main page and filter by “Hands-On Component”. Scheduled CTFs and challenges are listed in the monthly events blog post.

Name & Direct LinkPlatformFor BeginnersDFIR Related Challenge Type(s)
Blue Team Labs Online (Free Challenges)Blue Team Labs OnlineMemory Analysis, Network Analysis, Digital Forensics, Malware Analysis, Reverse Engineering
CyberDefendersCyberDefendersSplunk, SIEM, Malware Traffic Analysis, PCAP, OSINT, Reverse Engineering, Digital Forensics, ELK, Log Analysis
SocVelSocVelDigital Forensics & Incident Response Challenges
LetsDefend - Free VersionLetsDefendThis is a SOC Simulation Environment - Monitoring, Log Search, Case Management, Endpoint Security
The Case of the Stolen Szechuan SauceDFIR MadnessDigital Forensics, PCAP Analysis
Champlain College DFIR CTFCTFd - Champlain CollegeWindows Forensics, macOS Forensics, Wireshark, OSINT, Reverse Engineering
Forensic Challenges on Info-Sec Box

The password is: kjiIYFGsx76IOHK
Info-Sec BoxForensic challenges
Malware Analysis ExercisesGitHub - jstroschMalware Analysis
Malware-Traffic-Analysis.NetMalware-Traffic-Analysis.net PCAP Analysis
Flaws2 Defender TrackFlaws2.cloudAWS Incident Response Challenges
PwnDefendPwnDefendYesOSINT, Reverse Engineering, Forensics & Analysis
Mossé Cyber Security Institute Mossé Cyber Security Institute OSINT, Digital Forensics, YARA, Malware Analysis
HackTaleHackTaleYesA DFIR/Cyber Defense Training Game with Scenario-Based Challenges.
Immersive Labs CommunityImmersive LabsMalware Analysis, Digital Forensics, Threat Hunting
picoGympicoCTFForensics, Reverse Engineering, PCAP Analysis
CTFLearnCTFLearnYes - Has Easy, Medium, and Hard ChallengesForensics, Programming, Reverse Engineering, Binary, Cryptography
Challenges.reChallenges.reReverse Engineering Challenges
MemLabsGitHub - stuxnet999Yes - Challenges range from easy to hard.Memory Forensics
Mini Memory CTF
The Memory Sample is linked in the video.
YouTube - 13CubedMemory Forensics
CTF.LivePentesterAcademyYes - Has Beginner, Intermediate, and Advanced ChallengesNetwork Forensics, Reverse Engineering
TryHackMeTryHackMeYes - Has Easy, Medium and Hard ChallengesFree rooms include RE, Volatility, OSINT, Malware Analysis, Splunk, Linux, Ghidra, & Radare2
OSINT ChallengeThe Cyber InstituteOSINT Challenges
OSINT DojoOSINT Dojo/TwitterOSINT Challenges. Follow them on Twitter @OSINTDojo and earn Digital Badges for solving challenges.
OSINT CTFs by BushidoTokenBushidoTokenOSINT
Cyber DetectiveCyberSocOSINT
Cyber InvestigatorCyberSocOSINT
Quiztime on Twitter

Here is an article on how it works.
Twitter - @quiztimeOSINT
GeoGuessrGeoGuessrOSINT (Use your OSINT skills to figure where you are)
Challenges, CTFs and WalkthroughsAboutDFIRVarious DFIR Challenges
RangeForce Persistence Challenge  (July 21st-August 8th)RangeForceIdentify and Respond to Malicious IPs, Compromised Accounts, and Advanced Persistence.