Gabe
Senior
Online
Just an old man, living in Poland.
Activity
101 active days in the last yearRank Progress
Senior
Expert
3840 / 4633 XP
Achievements
Streak Starter
Streak Master
Streak Legend
Lab Rat
Lab Expert
Lab Master
Scholar
Writer
Contributor
Pro Member
CryptographySteganographyClassical CiphersImage AnalysisPolyalphabetic CiphersMemory ForensicsBinary AnalysisDigital ForensicsPattern RecognitionIncident ResponseTool UsageData RecoveryROT13 EncodingHistorical CryptanalysisTransposition CipherRail FencePythonPassword CrackingWindows SecurityNTLMHashcatJohn the RipperHash AnalysisKeePass 4.x SecurityDirect Brute ForcePassword Manager AssessmentModern CryptographySecurity Tool LimitationsPDF SecurityDictionary AttacksDocument SecurityBrute Force AttacksOffice SecurityHash ExtractionLinux SecurityhashcatFrequency AnalysisXORKnown-Plaintext AttackHex EncodingZIP Password CrackingfcrackzipBrute ForceArchive SecurityCustom WordlistWordlist GenerationPRINCE Modezip2johnMD5Hash CrackingOSINTPassword ReuseHTTP ProtocolRequest SmugglingNetwork ForensicsTraffic AnalysisWeb SecurityPacket AnalysisCryptanalysisClassical CryptoData EncodingJavaScriptRainbow TablesWeb DevelopmentBrowser DevToolsJWT ManipulationSSH ExploitationLog InjectionPrivilege EscalationHex EditorsData StructuresReverse EngineeringFile AnalysisPDF ForensicsMetadataHidden DataForensic ToolsBlockchain AnalysisBitcoinOP_RETURNHex DecodingData ExtractionForensic AnalysisCSSMedia QueriesWeb ForensicsSource AnalysisDevToolsNetwork AnalysisDNSData ExfiltrationBase64 DecodingNetwork ReconnaissanceService DiscoveryDatabase ForensicsCLI UsageBase64RedisQR Code AnalysisPacket CaptureWiresharkProtocol AnalysisWebCTF BasicsWeb InspectionHTML AnalysisPHPType JugglingAuthentication BypassPassword AnalysisSecurity ToolsHexadecimalNmapNmap CommandsTelnetPort ScanningCookie PoisoningSession TamperingBase64 EncodingClient-Side SecurityWeb ExploitationSecurity Through ObscurityView SourceInformation DisclosureBroken Access ControlHTMLView Source CodeSource Code AnalysisBroken AuthenticationDeveloper ToolsLearning PathCapture The FlagCTFFlag SubmissionUUIDGetting StartedCyber Security Fundamentals
Vigenere Stego Hunt
Challenge
Memory Forensics
Challenge
Book Cipher Challenge
Challenge
Rail Fence
Challenge
Windows Password Cracker
Challenge
KeePass Breaker
Challenge
PDF Password Cracker
Challenge
Office Password Cracker
Challenge
Shadow Cracker
Challenge
Caesar Shift Decoder
Challenge
XOR Reuse
Challenge
ZIP Cracker
Challenge
HTTP Smuggling
Challenge
Crypto Cipher
Challenge
Get the Password
Challenge
Infiltrator
Easy
Binary Secrets
Challenge
PDF Trap
Challenge
Blockchain Secrets
Challenge
Fine Print
Challenge
DNS Exfil
Challenge
Red is Dead
Challenge
QR Code Quest
Challenge
Packet Pursuit
Easy
Stego Hunt
Challenge
Base64 Detective
Challenge
Type Juggling Bypass
Challenge
Crack SHA1 Hash
Challenge
Hex Hunt
Challenge
Hack the Cookie: Cookie Poisoning Attack
Very Easy
Hack the Login
Very Easy
Pipes and data pipelines
Users, groups, and permissions
Filesystem navigation
Process management
Searching for what matters
Reading and manipulating files
Your first terminal session
Network commands
Hacking 101
10
The network underneath
Vulnerabilities and exploits
How passwords break
Encoding is not encryption
The hacker mindset
Your roadmap
Hacking humans
Hidden in plain sight
Open-source intelligence
The hacker's toolkit
Hash functions and collisions
Substitution ciphers
XOR cryptanalysis
The Vigenere cipher
Encoding and encryption
Daily Hack Solved
- The cookie that was an object
+10 XP
1 hour ago
Daily Hack Solved
- The redirect it only half checked
+10 XP
13 hours ago
Daily Hack Solved
- The filename that runs
+10 XP
2 days ago
Daily Hack Solved
- The header that skips the check
+10 XP
2 days ago
Writeup Added
+5 XP
3 days ago
Flag Found
- Vigenere Stego Hunt
+50 XP
3 days ago
Daily Hack Solved
- The codes the page had to know
+10 XP
4 days ago
Daily Hack Solved
- The word you already know
+10 XP
4 days ago
Daily Hack Solved
- The claim inside the claim
+10 XP
5 days ago
Daily Hack Solved
- The link you can write yourself
+10 XP
6 days ago
Daily Hack Solved
- The clock behind the commits
+10 XP
1 week ago
Daily Hack Solved
- The second factor in the backup
+10 XP
1 week ago
Daily Hack Solved
- The header that says where you are
+10 XP
1 week ago
Daily Hack Solved
- After the last byte
+10 XP
1 week ago
Daily Hack Solved
- Every road leads there
+10 XP
1 week ago
Writeup Added
+5 XP
1 week ago
Flag Found
- Memory Forensics
+50 XP
1 week ago
Writeup Added
+5 XP
1 week ago
Flag Found
- Book Cipher Challenge
+50 XP
1 week ago
Credited as Contributor
- Rail Fence
1 week ago
Daily Hack Solved
- The field that wins
+10 XP
1 week ago
Writeup Added
+5 XP
1 week ago
Flag Found
- Rail Fence
+50 XP
1 week ago
Writeup Added
+5 XP
2 weeks ago
Flag Found
- Windows Password Cracker
+50 XP
2 weeks ago
Daily Hack Solved
- Write it back
+10 XP
2 weeks ago
Daily Hack Solved
- Approved by somebody else
+10 XP
2 weeks ago
Daily Hack Solved
- The trigger that changed everything
+10 XP
2 weeks ago
Daily Hack Solved
- Two victims, one supplier
+10 XP
2 weeks ago
Writeup Added
+5 XP
2 weeks ago
Writeup Added
+5 XP
2 weeks ago
Writeup Added
+5 XP
2 weeks ago
Writeup Added
+5 XP
2 weeks ago
Writeup Added
+5 XP
2 weeks ago
Daily Hack Solved
- The light that talks
+10 XP
2 weeks ago
Daily Hack Solved
- One page of six
+10 XP
2 weeks ago
Flag Found
- KeePass Breaker
+50 XP
2 weeks ago
Flag Found
- PDF Password Cracker
+50 XP
3 weeks ago
Daily Hack Solved
- Bigger than it says
+10 XP
3 weeks ago
Flag Found
- Office Password Cracker
+50 XP
3 weeks ago
Daily Hack Solved
- The fill that was arranged
+10 XP
3 weeks ago
Chapter Completed
- Hash functions and collisions
+1 XP
3 weeks ago
Chapter Completed
- XOR cryptanalysis
+1 XP
3 weeks ago
Chapter Completed
- The Vigenere cipher
+1 XP
3 weeks ago
Chapter Completed
- Substitution ciphers
+1 XP
3 weeks ago
Chapter Completed
- Encoding and encryption
+1 XP
3 weeks ago
Flag Found
- Shadow Cracker
+50 XP
3 weeks ago
Flag Found
- Caesar Shift Decoder
+50 XP
3 weeks ago
Daily Hack Solved
- The sender nobody owns
+10 XP
3 weeks ago
Writeup Added
+5 XP
3 weeks ago