Recent posts:

• Plaid CTF 2020 – RE reee Writeup

  submitted 2020-04-19T15:33:09Z

• Plaid CTF 2020 – RE Shockwave Writeup

  submitted 2020-04-19T15:33:09Z

• Posts

  submitted 2020-04-19T15:33:09Z

• 0ctf qualifiers 2019 - Apple Pie

  submitted 2019-04-02T10:00:00+01:00

• OverTheWire Advent Bonanza 2018 - Snow Hammer

  submitted 2018-12-26T23:53:26+01:00

• hxp 2018 - Green Computing

  submitted 2018-12-09T18:57:24+01:00 to tags:[ pwning kernel rootkit ] categories:[ writeups ] series:[ hxp 2018 ]

• Seccon Quals 2016 - Ropsynth

  submitted 2016-12-15T13:30:00+01:00 to tags:[ Pwning, AEG, Binary ] categories:[ Writeups ] series:[ Seccon Quals 2016 ]

• Hack The Vote - Lockpicking

  submitted 2016-11-07T01:27:39+01:00 to tags:[ Forensics ] categories:[ Writeups ] series:[ Hack The Vote 2016 ]

• EKOPARTY 2016 - Secure Upload Hidden Service

  submitted 2016-10-29T20:00:00+01:00 to tags:[ network ] categories:[ Writeups ] series:[ EKOPARTY 2016 ]

• Secuinside Quals 2016 - mbrainfuzz

  submitted 2016-07-11T20:00:00+01:00 to tags:[ Pwning, AEG ] categories:[ Writeups ] series:[ Secuinside Quals 2016 ]

• DEFCON Quals 2016 - b3s23

  submitted 2016-05-25T20:00:00+01:00 to tags:[ Shellcoding ] categories:[ Writeups ] series:[ DEFCON Quals 2016 ]

• Insomni'hack 2016 - SafeCRT

  submitted 2016-03-21T17:00:00+02:00 to tags:[ Reversing ] categories:[ Writeups ] series:[ Insomnihack ]

• 32c3 CTF - the

  submitted 2016-01-02T17:46:00+02:00 to tags:[ Forensic ] categories:[ Writeups ] series:[ 32c3ctf ]

• 32c3 CTF - NordicByNature

  submitted 2016-01-01T14:56:00+02:00 to tags:[ Embedded ] categories:[ Writeups ] series:[ 32c3ctf ]

• TUMCTF - Web 200 Italy Food

  submitted 2015-10-26T09:13:00+02:00 to tags:[ Web ] categories:[ Writeups ] series:[ TUMCTF ]

• TUMCTF - Misc 200 Autoagressive Desensitization

  submitted 2015-10-25T19:48:00+02:00 to tags:[ Misc ] categories:[ Writeups ] series:[ TUMCTF ]

• HITCON - Web 300 Giraffe

  submitted 2015-10-19T11:06:00+02:00 to tags:[ Web ] categories:[ Writeups ] series:[ Hitcon ]

• EKOPARTY Pre-CTF - Reversing the APC cache

  submitted 2015-09-22T16:03:27+02:00 to tags:[ Reversing ] categories:[ Writeups ] series:[ EKOPARTY Pre-CTF ]

• CSAW 2015 Quals - Transfer

  submitted 2015-09-21T20:12:38+02:00 to tags:[ Forensics ] categories:[ Writeups ] series:[ CSAW15 Quals ]

• CSAW 2015 Quals - Keep calm and CTF

  submitted 2015-09-21T19:30:42+02:00 to tags:[ Forensics ] categories:[ Writeups ] series:[ CSAW15 Quals ]

• CSAW 2015 Quals - lawncaresimulator

  submitted 2015-09-21T09:15:54+02:00 to tags:[ Web ] categories:[ Writeups ] series:[ CSAW15 Quals ]

• CSAW 2015 Quals - FTP and FTP2

  submitted 2015-09-21T01:50:42+02:00 to tags:[ Reversing Pwnable ] categories:[ Writeups ] series:[ CSAW15 Quals ]

• Flare-On Challenges 2015 - #8 gdssagh

  submitted 2015-09-09T18:45:00+02:00 to categories:[ writeups ] series:[ Flare-On Challenges 2015 ]

• Flare-On Challenges 2015 - #7 YUSoMeta

  submitted 2015-09-09T18:04:09+02:00 to categories:[ writeups ] series:[ Flare-On Challenges 2015 ]

• DEFCON Quals 2015 - Klug

  submitted 2015-06-01T13:17:28Z to categories:[ writeups ] series:[ DEFCON Quals 2015 ]

• VolgaCTF 2015 Quals - Remote Web, interstellar

  submitted 2015-05-03T16:06:42Z to categories:[ writeups ] series:[ VolgaCTF 2015 Quals ]

• VolgaCTF 2015 Quals - Web2

  submitted 2015-05-03T15:47:23Z to tags:[ Web ] categories:[ writeups ] series:[ VolgaCTF 2015 Quals ]

• PlaidCTF 2015 - Cryptoserv (Reversing 250)

  submitted 2015-04-20T18:43:35Z to tags:[ Reversing ] categories:[ writeups ]

• NDH 2015 Quals - Weshgrow

  submitted 2015-04-05T19:17:13Z to categories:[ writeups ] series:[ NDH 2015 Quals ]

• 0CTF 2015 - RSAQuine

  submitted 2015-03-30T18:11:08Z to tags:[ Crypto ] categories:[ writeups ] series:[ 0CTF 2015 ]

• Boston Key Party 2015 - JFK/UMass

  submitted 2015-03-01T22:06:05Z to categories:[ writeups ] series:[ Boston Key Party 2015 ]

• Boston Key Party 2015 - Airport (Crypto 500)

  submitted 2015-03-01T21:37:56Z to tags:[ Crypto ] categories:[ writeups ] series:[ Boston Key Party 2015 ]

• 31C3 CTF - hwaes

  submitted 2014-12-30T12:00:43Z to categories:[ writeups ] series:[ 31C3 CTF ]

• 31C3 CTF - whatson writeup

  submitted 2014-12-30T11:29:09Z to categories:[ writeups ] series:[ 31C3 CTF ]

• Advent Calendar CTF 2014 - loginpage (web13)

  submitted 2014-12-30T11:27:19Z to tags:[ Web ] categories:[ writeups ] series:[ Advent Calendar CTF 2014 ]

• 31C3 CTF - ls writeup

  submitted 2014-12-30T11:14:33Z to categories:[ writeups ] series:[ 31C3 CTF ]

• 31C3 CTF - Page Builder writeup

  submitted 2014-12-29T23:25:50Z to categories:[ writeups ] series:[ 31C3 CTF ]

• 31C3 CTF - Devilish writeup

  submitted 2014-12-29T23:14:38Z to categories:[ writeups ] series:[ 31C3 CTF ]

• Advent Calendar CTF 2014 - Shooting (web5)

  submitted 2014-12-26T13:44:33Z to tags:[ Web ] categories:[ writeups ] series:[ Advent Calendar CTF 2014 ]

• Advent Calendar CTF 2014 - reader (PPC9)

  submitted 2014-12-26T13:35:00Z to categories:[ writeups ] series:[ Advent Calendar CTF 2014 ]

• Advent Calendar CTF 2014 - OTP writeup

  submitted 2014-12-26T12:20:11Z to categories:[ writeups ] series:[ Advent Calendar CTF 2014 ]

• SECCON CTF 2014 Online Qualifications – jspuzzle

  submitted 2014-12-07T11:51:01Z to categories:[ writeups ] series:[ SECCON Quals 2014 ]

• SECCON CTF 2014 Online Qualifications - Reverseit Writeup

  submitted 2014-12-07T11:34:08Z to categories:[ writeups ] series:[ SECCON CTF 2014 ]

• SECCON CTF 2014 Online Qualifications - Get from curious ftp server Writeup

  submitted 2014-12-07T11:29:25Z to categories:[ writeups ] series:[ SECCON CTF 2014 ]

• SECCON CTF 2014 Online Qualifications - Bleeding “Heartbleed” Test Web writeup

  submitted 2014-12-07T11:18:00Z to tags:[ Web ] categories:[ writeups ] series:[ SECCON CTF 2014 ]

• SECCON Quals 2014 - Decrypt it (Easy) [Crypto200]

  submitted 2014-12-07T10:56:54Z to tags:[ Crypto ] categories:[ writeups ] series:[ SECCON Quals 2014 ]

• 9447 Security Society CTF 2014 - Future and shmap Writeup

  submitted 2014-12-01T14:20:03Z to categories:[ writeups ] series:[ 9447 Security Society CTF 2014 ]

• 9447 Security Society CTF 2014 - Bashful and Coffee Writeup

  submitted 2014-12-01T13:56:05Z to categories:[ writeups ] series:[ 9447 Security Society CTF 2014 ]

• 9447 Security Society CTF 2014 - Ramble Writeup

  submitted 2014-12-01T13:45:55Z to categories:[ writeups ] series:[ 9447 Security Society CTF 2014 ]

• 9447 CTF 2014 - nosql

  submitted 2014-12-01T13:22:29Z to categories:[ writeups ] series:[ 9447 Security Society CTF 2014 ]

• Defcamp 2014 Finals - Web300

  submitted 2014-12-01T11:44:19Z to tags:[ web ] categories:[ writeups ] series:[ Defcamp 2014 Finals ]

• Defcamp 2014 Finals - Web100

  submitted 2014-12-01T11:40:30Z to tags:[ web ] categories:[ writeups ] series:[ Defcamp 2014 Finals ]

• Defcamp 2014 Finals - Net200(?)

  submitted 2014-12-01T11:36:31Z to tags:[ Net ] categories:[ writeups ] series:[ Defcamp 2014 Finals ]

• CSCAMP CTF Quals 2014 - I hate Time writeup

  submitted 2014-11-23T15:20:16Z

• CSCAMP CTF Quals 2014 - Dark Tasks writeup

  submitted 2014-11-23T15:02:17Z

• Hack.lu CTF 2014 - Callgate

  submitted 2014-10-23T22:28:15Z

• Hack.lu CTF 2014 - Peace Pipe

  submitted 2014-10-23T19:30:49Z

• Hack.lu CTF 2014 - Barmixing-Bot

  submitted 2014-10-23T13:49:27Z

• Hack.lu CTF 2014 - Dalton’s Corporate Security Safe for Business

  submitted 2014-10-23T13:48:48Z

• Hack.lu CTF 2014 - douchemac

  submitted 2014-10-23T11:00:08Z

• Hack.lu CTF 2014 - At Gunpoint

  submitted 2014-10-23T09:55:15Z

• Defcamp CTF Qualification 2014 - Web100,200,300 Writeup

  submitted 2014-10-20T13:03:59Z

• ASIS CTF Finals 2014 - Lion Club

  submitted 2014-10-14T13:48:02Z

• ASIS CTF Finals 2014 - TicTac (Forensics 200)

  submitted 2014-10-14T08:13:07Z

• ASIS CTF Finals 2014 - A familiar system

  submitted 2014-10-13T17:30:40Z

• ASIS CTF Finals 2014 - Match the pairs

  submitted 2014-10-13T13:49:35Z

• ASIS CTF Finals 2014 - Voting

  submitted 2014-10-13T12:35:39Z

• ASIS CTF Finals 2014 - Ultra Secure (Crypto 400)

  submitted 2014-10-13T10:52:08Z

• ASIS CTF Finals 2014 - Sattelite (PPC 200)

  submitted 2014-10-13T09:30:52Z

• ASIS CTF Finals 2014 - Numdroid

  submitted 2014-10-13T09:14:11Z

• CSAW 2014 quals - ish (exploitation 300)

  submitted 2014-09-22T21:35:49Z

• CSAW 2014 quals - wololo (rev300)

  submitted 2014-09-22T20:48:35Z

• xorcise (CSAW 2014 exploiting 500)

  submitted 2014-09-22T18:14:28Z

• s3 writeup (CSAW 2014, exploiting 300)

  submitted 2014-09-22T18:03:21Z

• CSAW 2014 quals - Hashes (web300)

  submitted 2014-09-22T17:32:44Z

• HITCON2014 - rsbo (pwn150) - Or: How to make things complicated

  submitted 2014-08-19T21:07:58Z

• Hitcon CTF 2014: Callme (exploiting 350)

  submitted 2014-08-18T18:57:45Z

• HITCON2014 - SHA1lcode (Shellcode300)

  submitted 2014-08-18T05:34:14Z to tags:[ HITCON ]

• HITCON2014 - Polyglot (Crazy500)

  submitted 2014-08-18T04:53:47Z to tags:[ HITCON ]

• BitcoinCTF 2014 - level 3 writeup

  submitted 2014-08-05T15:25:22Z

• SECUINSIDE CTF Quals 2014 - Shellcode100

  submitted 2014-06-01T15:02:29Z

• SECUINSIDE CTF Quals 2014 - Misc200

  submitted 2014-06-01T14:11:52Z

• SECUINSIDE CTF Quals 2014 - Web100

  submitted 2014-06-01T13:56:23Z

• DEF CON CTF Qualifier 2014 - shitsco

  submitted 2014-05-19T17:22:53Z

• DEF CON CTF Qualifier 2014 - baby's heap

  submitted 2014-05-19T13:27:30Z

• ASIS CTF Quals 2014 - Hidden Flag Writeup

  submitted 2014-05-11T12:53:35Z

• ASIS2014: Stego 100 - Spy Paper

  submitted 2014-05-11T08:32:28Z to tags:[ ASIS2014 Stegano ]

• ASIS2014: Forensic 150 - Forensic

  submitted 2014-05-10T16:40:07Z

• ASIS2014: Forensics 175 - Prying Ears

  submitted 2014-05-10T16:10:42Z to tags:[ ASIS214 Forensic ]

• 0x3004 CTF - Pwn2, EZ, Calc, PATH_TO_PRO, "DOTO, BEST DOTO", Pyjail 1 Writeup

  submitted 2014-04-30T13:40:21Z

• 0x3004 CTF - Injection1, Injection2, pydis, The Heart Still Bleed Writeup

  submitted 2014-04-30T13:32:39Z

• NotSoSecure CTF 2014 - Writeups

  submitted 2014-04-21T12:34:15Z

• PlaidCTF 2014 - ezhp Writeup

  submitted 2014-04-14T14:17:39Z

• PlaidCTF 2014 - WhatsCat Writeup

  submitted 2014-04-14T13:32:48Z

• PlaidCTF 2014 - reeekeeeeee Writeup

  submitted 2014-04-14T13:15:54Z

• Nuit du Hack CTF Quals 2014 - Web100 and Web300 Writeup

  submitted 2014-04-06T10:13:51Z

• Nuit du Hack CTF Quals 2014 - Misc150 and Misc200 Writeup

  submitted 2014-04-06T09:39:53Z

• backdoorCTF 2014 - Writeups

  submitted 2014-03-23T15:07:46Z

• RuCTF Quals 2014 - For200 and Admin200 Writeup

  submitted 2014-03-10T17:04:26Z

• RuCTF Quals 2014 - Vuln100 and Recon300 Writeup

  submitted 2014-03-10T15:05:47Z

• RuCTF Quals 2014 - Web100 and Web200 Writeup

  submitted 2014-03-10T14:58:58Z

• DEFKTHON CTF 2014 - Rev200, Misc200, Recon200, Misc300

  submitted 2014-03-05T14:11:12Z

• DEFKTHON CTF 2014 - Web200, Web300 and Web400 Writeup

  submitted 2014-03-05T13:33:01Z

• Boston Key Party CTF 2014 - Dante's Inferno

  submitted 2014-03-02T14:32:00Z

• Boston Key Party CTF 2014 - Web200 Writeup

  submitted 2014-03-02T14:11:07Z

• Codegate CTF Preliminary 2014 – Web Proxy Writeup

  submitted 2014-02-24T15:33:09Z

• Codegate CTF Preliminary 2014 - Clone Technique Writeup

  submitted 2014-02-24T14:26:14Z

• Olympic CTF Sochi 2014 - Elf Quest 2 Writeup

  submitted 2014-02-10T15:14:33Z

• Olympic CTF Sochi 2014 - RPC Writeup

  submitted 2014-02-10T14:50:34Z

• Olympic CTF Sochi 2014 - xnginx Writeup

  submitted 2014-02-10T14:31:45Z

• PHD CTF Quals 2014 - oracle Writeup

  submitted 2014-01-27T15:34:51Z

• PHD CTF Quals 2014 - pyjail

  submitted 2014-01-27T14:58:06Z

• PHD CTF Quals 2014 - lost and found part 2

  submitted 2014-01-27T14:45:24Z

• PHD CTF Quals 2014 - rbox and Metal Gear Felix Writeup

  submitted 2014-01-27T14:31:29Z

• GitS 2014: lugkist (Trivia 150)

  submitted 2014-01-20T14:20:29Z to tags:[ GitS2014 GitS WriteUp ]

• GitS 2014: Unbearable (Pwn Adventure 75)

  submitted 2014-01-20T14:19:53Z to tags:[ GitS2014 GitS WriteUp ]

• GitS 2014: Rabbit of Caerbannog (Pwn Adventure 75)

  submitted 2014-01-20T14:18:03Z to tags:[ GitS2014 GitS WriteUp ]

• GitS 2014: A Boaring Quest (Pwn Adventure 150)

  submitted 2014-01-20T14:17:13Z to tags:[ GitS2014 GitS WriteUp ]

• GitS 2014: Ad Substract (Pwn Adventure 75)

  submitted 2014-01-20T14:16:23Z to tags:[ GitS2014 GitS WriteUp ]

• GitS 2014: PHPCrypto (Recon 100)

  submitted 2014-01-20T14:15:36Z to tags:[ GitS2014 GitS WriteUp ]

• GitS 2014: Radioactive (Crypto 250)

  submitted 2014-01-20T14:14:48Z to tags:[ GitS2014 GitS WriteUp ]

• Hack you 2014 - Web300 Writeup

  submitted 2014-01-16T17:08:18Z

• Hack you 2014 - Net 300 Writeup

  submitted 2014-01-15T19:28:45Z

• Hack you 2014 - PPC100 Writeup

  submitted 2014-01-15T17:34:38Z

• Hack you 2014 - Rev 200 Writeup

  submitted 2014-01-15T16:57:06Z

• Hack you 2014 - Web 400 Writeup

  submitted 2014-01-15T16:02:29Z

• Hack you 2014 - Web 200

  submitted 2014-01-15T15:23:32Z

• Hack you 2014 CTF - Writeup Net100-Web100-Crypto100-Rev100

  submitted 2014-01-15T15:01:55Z

• 30C3 CTF - DOGE1 Writeup

  submitted 2013-12-30T15:45:48Z

• 30C3 CTF - rsync Writeup

  submitted 2013-12-30T15:07:11Z

• 30C3 CTF - guess Writeup

  submitted 2013-12-30T14:40:12Z

• CSCAMP CTF Quals 2013 - Web200

  submitted 2013-11-21T15:33:55Z

• CSCAMP CTF Quals 2013 - Web50

  submitted 2013-11-21T15:28:33Z

• Sharif University CTF Quals 2013 - Trivia 3 and 5

  submitted 2013-10-03T15:00:00Z

• No cON Name Facebook CTF Quals 2013 - Level 1 Writeup

  submitted 2013-10-03T14:42:06Z

• CSAW CTF Qualification Round 2013 – Exploitation 300

  submitted 2013-09-25T16:13:13Z

• CSAW CTF Qualification Round 2013 - Misc200

  submitted 2013-09-23T15:13:54Z

• CSAW CTF Qualification Round 2013 - Misc100

  submitted 2013-09-23T14:30:28Z

• CSAW CTF Qualification Round 2013 - Web200 Writeup

  submitted 2013-09-23T14:22:58Z

• CSAW CTF Qualification Round 2013 - Exploitation 200 Writeup

  submitted 2013-09-23T14:15:49Z

• EBCTF 2013 - Bin200 Writeup

  submitted 2013-08-04T15:11:22Z

• EBCTF 2013 - Web200 Writeup

  submitted 2013-08-04T14:57:13Z

• EBCTF 2013 - Net100 Writeup

  submitted 2013-08-04T14:36:26Z

• UFO CTF 2013 - Web300 Writeup

  submitted 2013-07-22T17:08:04Z

• UFO CTF 2013 - Web100 Writeup

  submitted 2013-07-22T16:44:32Z

• UFO CTF 2013 - Web75 Writeup

  submitted 2013-07-22T16:09:04Z

• DIMVA CTF 2013 - Web200 Writeup

  submitted 2013-07-19T15:16:57Z

• DIMVA CTF 2013 - Trivia50 (II) Writeup

  submitted 2013-07-19T15:03:03Z

• DIMVA CTF 2013 - Web100 Writeup

  submitted 2013-07-19T14:44:42Z

• SIGINTCTF 2013 - PROtocol Writeup

  submitted 2013-07-07T17:46:13Z

• SIGINT CTF 2013 - notes Writeup

  submitted 2013-07-07T17:32:20Z

• SIGINT CTF 2013 - mail Writeup

  submitted 2013-07-07T16:49:26Z

• DEF CON CTF Qualifier 2013 - OGMCMA1 Writeup

  submitted 2013-07-05T15:28:16Z

• 29C3 CTF - pwsafe

  submitted 2012-12-30T02:22:23Z

• SECUINSIDE 2012 prequals CTF – web writeup (cliph + sqlgeek)

  submitted 2012-06-11T02:34:18Z

• SECUINSIDE 2012 prequals CTF – web writeup (beast + yhsj)

  submitted 2012-06-11T02:30:18Z

• SECUINSIDE 2012 prequals CTF - web writeup (batman + zombie)

  submitted 2012-06-11T02:24:13Z

• BaltCTF 2012 - Europe300 writeup

  submitted 2012-05-21T20:35:32Z

• BaltCTF 2012 - Asia 400 Writeup

  submitted 2012-05-21T17:13:38Z

• PCTF 2012 - The Game Writeup

  submitted 2012-04-30T15:18:47Z