Sat, 27 Jan. 2018, 02:00 UTC — Sun, 28 Jan. 2018, 14:00 UTC 
On-line
Ha Noi, Vietnam
An AceBear Security Contest event.
Format: Jeopardy 
Official URL: https://ctf.acebear.site/rules
This event's future weight is subject of public voting!
Event organizers
AceBear Security Contest is a CTF competition hosted by ACEBEAR Team. Our CTF competition's aim is create a playground for all people who have passion in InfoSec.
IRC: http://webchat.freenode.net/?channels=%23acebearcontest
Prize (Reward only available to Vietnam team):
TOP 1: 4.000.000 VND
TOP 2: 2.000.000 VND
TOP 3: 1.000.000 VND
139 teams total
| Place | Team | CTF points | Rating points | |
|---|---|---|---|---|
| 1 | BabyPhD | 11442.000 | 49.260 | |
| 2 | glua.team | 8785.000 | 31.226 | |
| 3 | dcua | 8110.000 | 25.668 | |
| 4 | jinmo123 | 7589.000 | 22.494 | |
| 5 | OpenToAll | 6603.000 | 19.140 | |
| 6 | tictactoe | 6584.000 | 18.278 | |
| 7 | HackXore | 5831.000 | 16.070 | |
| 8 | 玲奈ちゃんめっちゃ可愛い~♡ | 4836.000 | 13.489 | |
| 9 | efiens | 4028.000 | 11.407 | |
| 10 | noraneco | 3987.000 | 11.045 | |
| 11 | Camelot | 3469.000 | 9.706 | |
| 12 | hyoub9un | 3462.000 | 9.505 | |
| 13 | rtep | 3445.000 | 9.310 | |
| 14 | Trinity | 3444.000 | 9.173 | |
| 15 | TheRomanXpl0it | 2963.000 | 8.020 | |
| 16 | Squareroots | 2878.000 | 7.735 | |
| 17 | bi0s | 2741.000 | 7.349 | |
| 18 | Tower of Hanoi | 2678.000 | 7.133 | |
| 19 | CodePwn | 2626.000 | 6.949 | |
| 20 | CAT-CODEGATE | 2553.000 | 6.727 | |
| 21 | pwnist | 2498.000 | 6.550 | |
| 22 | ASIS | 2470.000 | 6.436 | |
| 23 | Aperi'Kube | 2326.000 | 6.078 | |
| 24 | SuR0ot | 2262.000 | 5.895 | |
| 25 | SaBerTooths | 2255.000 | 5.839 | |
| 26 | pearl | 1967.000 | 5.181 | |
| 27 | HackThisSite | 1875.000 | 4.948 | |
| 28 | SmartRobot | 1840.000 | 4.840 | |
| 29 | PwnaSonic | 1787.000 | 4.696 | |
| 30 | TeamCC | 1767.000 | 4.625 | |
| 31 | RJ45 | 1742.000 | 4.544 | |
| 32 | r3soL | 1702.000 | 4.433 | |
| 33 | #TNone | 1675.000 | 4.352 | |
| 34 | 117 | 1667.000 | 4.313 | |
| 35 | b0cchi | 1667.000 | 4.292 | |
| 36 | sayho | 1642.000 | 4.219 | |
| 37 | XeR | 1419.000 | 3.720 | |
| 38 | justCatTheFish | 1311.000 | 3.470 | |
| 39 | ASGama | 1264.000 | 3.352 | |
| 40 | Netcat.us | 1256.000 | 3.319 | |
| 41 | FluxFingers | 1219.000 | 3.225 | |
| 42 | 0x34044 | 1211.000 | 3.193 | |
| 43 | Harekaze | 1191.000 | 3.137 | |
| 44 | AT11E | 1111.000 | 2.951 | |
| 45 | VoidHack | 1011.000 | 2.724 | |
| 46 | sw1ss | 1011.000 | 2.712 | |
| 47 | Siber Defense Club | 996.000 | 2.668 | |
| 48 | nụ cười mới | 919.000 | 2.491 | |
| 49 | p4 | 911.000 | 2.464 | |
| 50 | ITUS-th3r3turn | 911.000 | 2.454 | |
| 51 | lonelyday | 856.000 | 2.326 | |
| 52 | broast2 | 856.000 | 2.316 | |
| 53 | root | 811.000 | 2.210 | |
| 54 | ShineShadow | 811.000 | 2.202 | |
| 55 | technic | 811.000 | 2.194 | |
| 56 | Team2A | 711.000 | 1.970 | |
| 57 | RPISEC | 711.000 | 1.963 | |
| 58 | Epic Leet Team | 600.000 | 1.716 | |
| 59 | 0x90r00t | 500.000 | 1.494 | |
| 60 | Inshall'hack | 500.000 | 1.487 | |
| 61 | JBZ | 500.000 | 1.480 | |
| 62 | FireShell | 400.000 | 1.258 | |
| 63 | WhiteCat | 400.000 | 1.252 | |
| 64 | zepto | 400.000 | 1.246 | |
| 65 | 1234 | 300.000 | 1.025 | |
| 66 | the cr0wn | 300.000 | 1.019 | |
| 67 | Snatch The Root | 300.000 | 1.013 | |
| 68 | CTD Elite | 300.000 | 1.008 | |
| 69 | dozamine | 300.000 | 1.003 | |
| 70 | NIS | 300.000 | 0.998 | |
| 71 | HSG | 300.000 | 0.993 | |
| 72 | blackbunny | 300.000 | 0.988 | |
| 73 | DAMDAMDEO | 300.000 | 0.983 | |
| 74 | WeBareBears | 300.000 | 0.979 | |
| 75 | j0k3r | 200.000 | 0.759 | |
| 76 | y12uN | 200.000 | 0.755 | |
| 77 | UCCU | 200.000 | 0.750 | |
| 78 | Prefix | 200.000 | 0.746 | |
| 79 | SoloRandonDude | 200.000 | 0.742 | |
| 80 | Heap or be heap | 200.000 | 0.738 | |
| 81 | Binary_Flag | 200.000 | 0.735 | |
| 82 | InfoSecIITR | 200.000 | 0.731 | |
| 83 | cybber | 200.000 | 0.727 | |
| 84 | Pwnacea | 200.000 | 0.724 | |
| 85 | MV9rwGOf08 | 200.000 | 0.720 | |
| 86 | CardiffComputingClub | 200.000 | 0.717 | |
| 87 | xSTF | 200.000 | 0.714 | |
| 88 | Batman's Kitchen | 200.000 | 0.710 | |
| 89 | EandA | 200.000 | 0.707 | |
| 90 | nyancat0131 | 200.000 | 0.704 | |
| 91 | CSI | 200.000 | 0.701 | |
| 92 | Team Abakus | 200.000 | 0.698 | |
| 93 | kokoko | 200.000 | 0.695 | |
| 94 | testteam | 200.000 | 0.693 | |
| 95 | iptablesL | 100.000 | 0.475 | |
| 96 | powerprove | 100.000 | 0.472 | |
| 97 | nonoonb | 100.000 | 0.469 | |
| 98 | hasagi | 100.000 | 0.467 | |
| 99 | Les batards de bordeaux | 100.000 | 0.464 | |
| 100 | MSTUCA | 100.000 | 0.462 | |
| 101 | MhackGyver | 100.000 | 0.459 | |
| 102 | JoseBeo | 100.000 | 0.457 | |
| 103 | lead_s0ldir | 100.000 | 0.454 | |
| 104 | CodeheadUK | 100.000 | 0.452 | |
| 105 | Zer0Day | 100.000 | 0.450 | |
| 106 | cpg | 100.000 | 0.448 | |
| 107 | TenkoChabashira | 100.000 | 0.445 | |
| 108 | huyvinhptit | 100.000 | 0.443 | |
| 109 | RATF{Rage Against The Flag} | 100.000 | 0.441 | |
| 110 | ~xxx~ | 100.000 | 0.439 | |
| 111 | C521 | 100.000 | 0.437 | |
| 112 | Securimag | 100.000 | 0.435 | |
| 113 | WhiteBear | 100.000 | 0.433 | |
| 114 | starPt | 100.000 | 0.431 | |
| 115 | 7ambola | 100.000 | 0.429 | |
| 116 | EpicTeam | 100.000 | 0.428 | |
| 117 | 0xBU | 100.000 | 0.426 | |
| 118 | Invulnerable | 100.000 | 0.424 | |
| 119 | 0v3n_Sh3ll | 100.000 | 0.422 | |
| 120 | Little Cocky Tables | 100.000 | 0.421 | |
| 121 | 0x00C0FFEE | 100.000 | 0.419 | |
| 122 | Bits For Everyone | 100.000 | 0.417 | |
| 123 | noTeamName | 100.000 | 0.416 | |
| 124 | A team has no n4me | 100.000 | 0.414 | |
| 125 | acdwas | 100.000 | 0.412 | |
| 126 | T35H | 100.000 | 0.411 | |
| 127 | Hacker Ameer | 100.000 | 0.409 | |
| 128 | Damonsson | 100.000 | 0.408 | |
| 129 | 4k_mmr | 100.000 | 0.406 | |
| 130 | n0psledbyte | 100.000 | 0.405 | |
| 131 | CShell | 100.000 | 0.403 | |
| 132 | Matabox | 100.000 | 0.402 | |
| 133 | CP_TEAM | 100.000 | 0.400 | |
| 134 | One-Team | 100.000 | 0.399 | |
| 135 | c2w2m2 | 100.000 | 0.398 | |
| 136 | seiyakyokai | 100.000 | 0.396 | |
| 137 | tailatitude | 100.000 | 0.395 | |
| 138 | 0N10N | 100.000 | 0.394 | |
| 139 | yNNhoJ | 100.000 | 0.196 | |
Hello, is there an IRC channel for this CTF in case we want to contact the challenge admins?
http://webchat.freenode.net/?channels=%23acebearcontest
This is our IRC, if u have any question, feel free to let us know. Thanks
Can anyone tell me how the welcome challenge was solved? I went nuts with the cipher!
@diegobernal0905 it was a simple XOR with repeating key. You know the flag prefix and thus you can recover the key.
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