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krtfbn

Expert

Krzysztof PROland

#2 Poland

4844 Total XP

18 Labs Completed 0 First Bloods 45 Streak 45 Best

+40 this week +20 this month

Activity

45 active days in the last year

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4844 / 8070 XP

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Reverse EngineeringBinary AnalysisCrackmeKeygenobjdumpGDBELFARM64 AssemblyStatic AnalysisGhidraWeb EnumerationSSHPassword CrackingPrivilege EscalationLinux SecurityCVE ExploitationPythonPickle DeserializationRCELinuxCryptographyXORKnown-Plaintext AttackHex EncodingJWT ManipulationSSH ExploitationLog InjectionWeb SecuritySQL InjectionAuthentication BypassLinux Privilege EscalationFile PermissionsWeb Application SecurityAuthenticationIDORAPI SecurityPath TraversalAccess ControlIP SPOOFINGFTPCookie PoisoningSession TamperingBase64 EncodingBrowser DevToolsClient-Side SecurityWeb ExploitationSecurity Through ObscurityView SourceInformation DisclosureBroken Access ControlHTMLBroken AuthenticationDeveloper ToolsLearning PathView Source CodeSource Code AnalysisNmapNmap CommandsTelnetPort ScanningNetwork ReconnaissanceCapture The FlagCTFCTF BasicsFlag SubmissionUUIDGetting StartedCyber Security FundamentalsPHPLFI

Reverse Engineering: License Key Crackme Medium

400 XP Sep 13, 2026

TechNova Infiltration Medium

400 XP Sep 12, 2026

Pickle Jar Medium

400 XP Sep 11, 2026

XOR Reuse Challenge

50 XP Sep 09, 2026

Infiltrator Easy

200 XP Sep 09, 2026

Alpwned Medium

400 XP Aug 31, 2026

Hidden CMS Breach Medium

400 XP Aug 30, 2026

ClearDesk Medium

400 XP Aug 30, 2026

Cronpocalypse Easy

200 XP Aug 24, 2026

Spoof! Easy

100 XP Aug 24, 2026

Anonymous Easy

100 XP Aug 24, 2026

Hack the Cookie: Cookie Poisoning Attack Very Easy

50 XP Aug 24, 2026

Secrets in Source 2: Bypass Security Through Obscurity Very Easy

50 XP Aug 24, 2026

Hack the Login Very Easy

50 XP Aug 24, 2026

Secrets in Source: View Source Code to Find the Flag Very Easy

50 XP Aug 24, 2026

Nmap Commands Lab: Port Scanning to Privilege Escalation Very Easy

100 XP Aug 24, 2026

Capture the Flag 101: Find and Submit Your First Flag Very Easy

50 XP Aug 24, 2026

Include me Easy

100 XP Aug 23, 2026

Linux Terminal Basics 10

Pipes and data pipelines 1 XP Aug 29, 2026

Users, groups, and permissions 1 XP Aug 29, 2026

Filesystem navigation 1 XP Aug 29, 2026

Process management 1 XP Aug 29, 2026

Environment and package management 1 XP Aug 29, 2026

Bash scripting for security 1 XP Aug 29, 2026

Searching for what matters 1 XP Aug 29, 2026

Reading and manipulating files 1 XP Aug 29, 2026

Your first terminal session 1 XP Aug 29, 2026

Network commands 1 XP Aug 29, 2026

Hacking 101 10

The network underneath 1 XP Aug 21, 2026

Vulnerabilities and exploits 1 XP Aug 21, 2026

How passwords break 1 XP Aug 21, 2026

Encoding is not encryption 1 XP Aug 21, 2026

The hacker mindset 1 XP Aug 21, 2026

Your roadmap 1 XP Aug 21, 2026

Hacking humans 1 XP Aug 21, 2026

Hidden in plain sight 1 XP Aug 21, 2026

Open-source intelligence 1 XP Aug 21, 2026

The hacker's toolkit 1 XP Aug 21, 2026

Daily Hack Solved - The field that wins +10 XP

17 hours ago

Daily Hack Solved - Write it back +10 XP

1 day ago

Daily Hack Solved - Approved by somebody else +10 XP

2 days ago

Daily Hack Solved - The trigger that changed everything +10 XP

3 days ago

Active for 1 days

4 days ago

Daily Hack Solved - The light that talks +10 XP

5 days ago

Daily Hack Solved - One page of six +10 XP

6 days ago

Daily Hack Solved - Bigger than it says +10 XP

1 week ago

Daily Hack Solved - The fill that was arranged +10 XP

1 week ago

Daily Hack Solved - The sender nobody owns +10 XP

1 week ago

Daily Hack Solved - The invite that made an owner +10 XP

1 week ago

Daily Hack Solved - Who signs your token +10 XP

1 week ago

Daily Hack Solved - The cert that named it +10 XP

1 week ago

Daily Hack Solved - Where the link really goes +10 XP

1 week ago

Daily Hack Solved - The allowlist that isn't +10 XP

2 weeks ago

Daily Hack Solved - Three keys, one account +10 XP

2 weeks ago

Daily Hack Solved - The canary build +10 XP

2 weeks ago

Daily Hack Solved - The gateway that appeared +10 XP

2 weeks ago

Daily Hack Solved - The click you never made +10 XP

2 weeks ago

Flag Found - Reverse Engineering: License Key Crackme +200 XP

2 weeks ago

Flag Found - Reverse Engineering: License Key Crackme +200 XP

2 weeks ago

Flag Found - TechNova Infiltration +200 XP

2 weeks ago

Flag Found - TechNova Infiltration +200 XP

2 weeks ago

Flag Found - Pickle Jar +200 XP

3 weeks ago

Flag Found - Pickle Jar +200 XP

3 weeks ago

Daily Hack Solved - Count the layers +10 XP

3 weeks ago

Daily Hack Solved - The total you do not see +10 XP

3 weeks ago

Flag Found - XOR Reuse +50 XP

3 weeks ago

Flag Found - Infiltrator +100 XP

3 weeks ago

Flag Found - Infiltrator +100 XP

3 weeks ago

Daily Hack Solved - How long does it live +10 XP

3 weeks ago

Daily Hack Solved - The alibi that breaks +10 XP

3 weeks ago

Daily Hack Solved - Recover the XOR key +10 XP

3 weeks ago

Daily Hack Solved - Find the safe one +10 XP

3 weeks ago

Daily Hack Solved - Repair the magic bytes +10 XP

3 weeks ago

Daily Hack Solved - Count the compromised +10 XP

4 weeks ago

Daily Hack Solved - The version that leaks +10 XP

4 weeks ago

Daily Hack Solved - When did the backups die +10 XP

1 month ago

Lesson Completed +15 XP

1 month ago

Lesson Completed +11 XP

1 month ago

Lesson Completed +5 XP

1 month ago

Daily Hack Solved - Follow the ransom BTC +10 XP

1 month ago

Flag Found - Alpwned +200 XP

1 month ago

Flag Found - Alpwned +200 XP

1 month ago

Daily Hack Solved - Single-byte XOR +10 XP

1 month ago

Flag Found - Hidden CMS Breach +200 XP

1 month ago

Flag Found - Hidden CMS Breach +200 XP

1 month ago

Flag Found - ClearDesk +200 XP

1 month ago

Task Completed - ClearDesk

1 month ago

Task Completed - ClearDesk

1 month ago

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