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chuyu

Junior
#2 Hong Kong
1381 Total XP
12 Labs Completed 0 First Bloods 1 Streak 3 Best
Hong Kong Joined February 2026

Activity

9 active days in the last year
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Rank Progress

Junior
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1381 / 1964 XP

Achievements

Streak Starter
Lab Rat
Reverse EngineeringBinary AnalysisCrackmeKeygenobjdumpGDBELFARM64 AssemblyStatic AnalysisGhidraSSHFTP ExploitationBackdoor DetectionNetwork ServicesRemote ShellSystem ExploitationIP SPOOFINGFTPPHPLFICookie PoisoningSession TamperingBase64 EncodingPrivilege EscalationBrowser DevToolsClient-Side SecurityWeb ExploitationSecurity Through ObscurityView SourceInformation DisclosureBroken Access ControlWeb SecurityHTMLView Source CodeSource Code AnalysisNmapNmap CommandsTelnetPort ScanningNetwork ReconnaissanceAuthentication BypassBroken AuthenticationDeveloper ToolsLearning PathCapture The FlagCTFCTF BasicsFlag SubmissionUUIDGetting StartedCyber Security Fundamentals
Reverse Engineering: License Key Crackme
Reverse Engineering: License Key Crackme Medium
400 XP Jul 20, 2026
Cronpocalypse
Cronpocalypse Easy
200 XP Jul 19, 2026
Anonymous 2
Anonymous 2 Easy
100 XP Apr 22, 2026
Spoof!
Spoof! Easy
100 XP Apr 22, 2026
Anonymous
Anonymous Easy
100 XP Apr 22, 2026
Include me
Include me Easy
100 XP Apr 22, 2026
Hack the Cookie: Cookie Poisoning Attack
Hack the Cookie: Cookie Poisoning Attack Very Easy
50 XP Apr 22, 2026
Secrets in Source 2: Bypass Security Through Obscurity
Secrets in Source 2: Bypass Security Through Obscurity Very Easy
50 XP Apr 22, 2026
Secrets in Source: View Source Code to Find the Flag
Secrets in Source: View Source Code to Find the Flag Very Easy
50 XP Apr 20, 2026
Nmap Commands Lab: Port Scanning to Privilege Escalation
Nmap Commands Lab: Port Scanning to Privilege Escalation Very Easy
100 XP Apr 20, 2026
Hack the Login
Hack the Login Very Easy
50 XP Apr 14, 2026
Capture the Flag 101: Find and Submit Your First Flag
Capture the Flag 101: Find and Submit Your First Flag Very Easy
50 XP Apr 14, 2026
Hacking 101 1
The hacker mindset 1 XP Jul 20, 2026
Daily Hack Solved - Unwrap the C2 beacon +10 XP
1 week ago
Daily Hack Solved - Forge the tier +10 XP
2 weeks ago
Chapter Completed - The hacker mindset +1 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
Daily Hack Solved - Extract the XOR key +10 XP
2 weeks ago
Flag Found - Cronpocalypse +100 XP
2 weeks ago
Active for 1 days
2 months ago
Flag Found - Cronpocalypse +100 XP
3 months ago
Flag Found - Anonymous 2 +100 XP
3 months ago
Flag Found - Spoof! +100 XP
3 months ago
Flag Found - Anonymous +100 XP
3 months ago
Flag Found - Include me +100 XP
3 months ago
Flag Found - Hack the Cookie: Cookie Poisoning Attack +50 XP
3 months ago
Flag Found - Secrets in Source 2: Bypass Security Through Obscurity +50 XP
3 months ago
Flag Found - Secrets in Source: View Source Code to Find the Flag +50 XP
3 months ago
Flag Found - Nmap Commands Lab: Port Scanning to Privilege Escalation +50 XP
3 months ago
Flag Found - Nmap Commands Lab: Port Scanning to Privilege Escalation +50 XP
3 months ago
Flag Found - Hack the Login +50 XP
3 months ago
Flag Found - Capture the Flag 101: Find and Submit Your First Flag +50 XP
3 months ago
Active for 2 days
4 months ago

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