Fri, 29 May 2020, 20:00 UTC — Sun, 31 May 2020, 20:00 UTC 

On-line

castorsCTF event.

Format: Jeopardy Jeopardy

Official URL: https://castorsctf20.ctfd.io/

This event's future weight is subject of public voting!

Future weight: 22.22 

Rating weight: 22.22 

Event organizers 

Beginner CTF organized by students from Polytechnic University of Puerto Rico for undergraduate students.

Challenges will cover topics from cryptography, reverse engineering, web exploitation, binary exploitation, computer forensics, coding and miscellaneous.

Prizes

*The CTF has been extended till June 1st 0000 UTC (4 more hours) due to downtime during the beginning of the CTF. Please wait till 0000 UTC June 1st to submit writeups. Thank you!*

- 1st Place: $256
- 2nd Place: $128
- 3rd Place: $64
*Only students from academic institutions in Puerto Rico are eligible for prizes*

Scoreboard

500 teams total

PlaceTeamCTF pointsRating points
1 Pwn Intended 12164.00044.440
2 bootplug 12164.00033.330
3 from Sousse, with love 12164.00029.627
4 Bat Squad 12164.00027.775
5 pwnthem0le 11671.00025.763
6 OpenToAll 11192.00024.148
7 burner_herz0g 11175.00023.588
8 hackerbang 10685.00022.296
9 Pwnium 9769.00020.314
10 Gangsters 9758.00020.047
11 L33t Dev 9757.00019.843
12 The Order of Bit 9702.00019.574
13 h4ck3rb0b 9258.00018.621
14 MyVseUronili 9225.00018.438
15 hackerbang2 9213.00018.311
16 A1ph4Z3r0 9035.00017.893
17 panzeroot# 8758.00017.305
18 Plaid Parliament of Pwning 8501.00016.763
19 Zh3r0_0ffici4l 8306.00016.342
20 osusec 8256.00016.192
21 Fword 8239.00016.108
22 TeamCC 7867.00015.381
23 CYberMouflons 7799.00015.213
24 kemankeş 7556.00014.728
25 pwndr3 7426.00014.454
26 Corax 7339.00014.261
27 ByteForc3 7311.00014.178
28 Cyberlabs 6987.00013.557
29 IPFactory 6954.00013.469
30 0x90r00t 6929.00013.398
31 Zense 6745.00013.038
32 beerpwn 6685.00012.906
33 ZeroMemory 6584.00012.700
34 SWV_L 6576.00012.666
35 fearless 6016.00011.624
36 DarkArmy 5962.00011.508
37 noraneco 5725.00011.058
38 break_the_code 5662.00010.928
39 0xpwn 5338.00010.321
40 CSI 5197.00010.049
41 warlock_rootx 5189.00010.021
42 Shonan 5185.00010.000
43 asdf 4974.0009.603
44 onotch 4947.0009.542
45 Defenit 4893.0009.432
46 PROACTIVE 4875.0009.388
47 MakMakBak 4753.0009.155
48 rizemon 4723.0009.090
49 Tsami 4593.0008.844
50 Tebas 4574.0008.800
51 Team Fr34ks 4448.0008.561
52 naver 4436.0008.531
53 Cáerme 4397.0008.451
54 xor and the half adder 4327.0008.316
55 whocares 4035.0007.775
56 DDoS(Dauntless Department of Sentinels) 4005.0007.713
57 nkj 3959.0007.622
58 SushiRoll 3928.0007.558
59 threat.club 3922.0007.541
60 PTZCTF 3877.0007.452
61 LinyTail 3819.0007.340
62 M.2 3815.0007.327
63 Dashu 3813.0007.318
64 zer0byte 3778.0007.248
65 cyb3r_w1z4rds1 3740.0007.174
66 Hacky Easter 3711.0007.116
67 KUDoS 3645.0006.990
68 y4chtclub 3531.0006.777
69 LetzPwn 3356.0006.452
70 (mendung)10^6 3298.0006.342
71 tete2soja 3273.0006.292
72 HackingForSoju 3209.0006.170
73 CSY54 3186.0006.124
74 x0rc3r3rs 3145.0006.045
75 NULLKrypt3rs 3100.0005.959
76 KDB 3092.0005.941
77 acdwas 3048.0005.856
78 derp 3046.0005.849
79 quintuplecs 3041.0005.836
80 KogCoder 3035.0005.822
81 Spikers 3018.0005.787
82 nullptr 3010.0005.769
83 bora9 3000.0005.748
84 S1gm0id 2991.0005.728
85 OAAOAOAO 2967.0005.681
86 fLAGers 2917.0005.587
87 PolloETroie 2914.0005.578
88 NuttyShell 2756.0005.287
89 LoIicore 2753.0005.279
90 JHDiscord 2751.0005.272
91 Team Woa 2708.0005.191
92 c0d3_h4cki05_ 2686.0005.148
93 APT593 2646.0005.072
94 Pwnie Island 2634.0005.048
95 Sky2Pwn 2631.0005.040
96 LibcHasReturned 2625.0005.027
97 STNKS 2599.0004.977
98 dex 2591.0004.960
99 echobash 2574.0004.926
100 interr0b4ngs 2566.0004.910
101 wiwam845 2545.0004.869
102 Lions 2507.0004.797
103 Hus@r1@ 2491.0004.766
104 tellmewhy 2490.0004.762
105 ky0muge2 2437.0004.663
106 PwnaSonic 2411.0004.614
107 Mee Kolok Sigek 2406.0004.603
108 r00tstici 2382.0004.557
109 OrderofShadows 2372.0004.537
110 W3rni0 2370.0004.531
111 ph03n1x 2349.0004.491
112 qemutherapy 2333.0004.460
113 CSUI_RISTEK_NOOB 2332.0004.457
114 The WINRaRs 2326.0004.444
115 Astra 2317.0004.426
116 info info 2295.0004.384
117 thrumbos 2252.0004.304
118 PWN.rar 2205.0004.216
119 yamiza 2181.0004.171
120 Rage Against The Madame 2175.0004.158
121 Cat Training Force 2077.0003.978
122 Robert'); DROP TABLE Teams;-- 2075.0003.973
123 h4ck7u5 2042.0003.911
124 killswitch 2038.0003.902
125 InfosecIITG 2030.0003.886
126 polpol 1988.0003.808
127 Department of Defense against Digital Dark Arts 1939.0003.717
128 nguyendqn 1939.0003.716
129 StarLabs 1914.0003.669
130 cyberstudents 1911.0003.662
131 R4ND0M 1906.0003.651
132 Aseng 1824.0003.500
133 Covid Killers 1809.0003.472
134 Superrrrr 1801.0003.456
135 Iam9r00t 1769.0003.396
136 tienuit 1768.0003.393
137 SpeedwagonFoundation 1766.0003.388
138 XYZ-default 1761.0003.378
139 sazouki 1750.0003.357
140 Code Black 1721.0003.302
141 kkk 1719.0003.298
142 늘어난고무줄양말 1718.0003.295
143 BL00PERS 1697.0003.255
144 imAlone:( 1667.0003.199
145 fitE mE DeVIn 1641.0003.151
146 ISwearIGoogledIt 1637.0003.143
147 Dark Motel 1621.0003.112
148 noTeamName 1618.0003.106
149 OverDover 1563.0003.004
150 pixir65223 1559.0002.996
151 Pengen Menanghiks 1535.0002.951
152 0x435446 1512.0002.908
153 Kuruwa 1481.0002.851
154 RootBeer 1472.0002.833
155 CBF 1466.0002.821
156 BADSUD0'S 1463.0002.815
157 UGASCS 1450.0002.790
158 WAMTeam 1417.0002.729
159 kanyewest 1400.0002.697
160 hack^3 1397.0002.691
161 Soljanka 1389.0002.675
162 ri5e 1385.0002.667
163 hardcode 1379.0002.655
164 pth 1367.0002.633
165 crayontheft 1304.0002.517
166 stankc 1299.0002.507
167 Iceclue 1286.0002.482
168 N33rdZ 1245.0002.407
169 ampastahu 1217.0002.355
170 HackAndRol 1214.0002.348
171 0xPwny 1197.0002.317
172 N00B_4rMY 1194.0002.310
173 kks_KeKoS_Team 1166.0002.258
174 printfbuf 1163.0002.252
175 binLep 1163.0002.251
176 DragonSec SI 1163.0002.251
177 thisisaname 1141.0002.210
178 N00B3s 1132.0002.193
179 FluffyPeople 1124.0002.177
180 Still DIGing 1105.0002.142
181 tsustyle 1105.0002.141
182 Schr0ding3r5 1101.0002.133
183 UIT.SoloQ 1088.0002.109
184 dcua 1077.0002.088
185 nuk3 1072.0002.078
186 spoilers 1060.0002.056
187 joopyjoo 1056.0002.048
188 pcback 1037.0002.012
189 iust 1030.0001.999
190 lapinouteam 1024.0001.987
191 p2n 1024.0001.987
192 rycbar 996.0001.935
193 Kuality 995.0001.933
194 Ctrl Nerds 974.0001.894
195 Jurassic-Hacks 970.0001.886
196 pwnPrime 965.0001.876
197 common 956.0001.859
198 Sonseon 952.0001.851
199 Cyber Guardian 950.0001.847
200 winnie 947.0001.841
201 AmIRight 936.0001.820
202 R'Hackette 927.0001.803
203 raining_shell 900.0001.753
204 [SHP]-HiddenFileVillage 898.0001.749
205 N0N@me13 894.0001.741
206 p0isonP4wn 889.0001.732
207 UMDCSEC 881.0001.717
208 Njord 873.0001.702
209 fzhshzh 862.0001.681
210 Rohnugu 860.0001.677
211 Super Heroes In Training 857.0001.671
212 Josh On Bench 857.0001.670
213 SemCert 855.0001.666
214 Globsec 827.0001.615
215 Necron3574 821.0001.603
216 bl0cch1_53qu3nzi4l1 818.0001.597
217 alphablack 816.0001.593
218 ayam 813.0001.587
219 vanhelsing 808.0001.577
220 intergalactic_unicorns 806.0001.573
221 reg_time 805.0001.571
222 shaboi 786.0001.536
223 obtain_r00t 774.0001.514
224 CNHN 772.0001.509
225 TorkyBlorky 772.0001.509
226 Ghostofsparta 762.0001.490
227 flag{}___Orz 762.0001.490
228 TURB0SPURG0 760.0001.486
229 El10n 758.0001.482
230 Can't do anything 736.0001.441
231 April Showers 736.0001.441
232 so_noob 733.0001.435
233 p0x82s 724.0001.418
234 lmntrix 724.0001.417
235 clarissa 723.0001.415
236 Alone gang 719.0001.408
237 kanbedon 708.0001.387
238 hacktical 707.0001.385
239 JustNotBob 700.0001.372
240 SPQR 700.0001.371
241 somenoob 698.0001.367
242 smolsbs 662.0001.301
243 prabhanjanmannari@gmail.com 657.0001.292
244 anonymous_animals 650.0001.278
245 ahsh3r 650.0001.278
246 Team ForFun 650.0001.278
247 spencer.keshawn8665@instasmail.com 644.0001.266
248 0x1337deadbeef 633.0001.246
249 allpurposebucket 624.0001.229
250 Fweefwop 619.0001.220
251 TheBlackPearl 605.0001.194
252 Blueberry_Pie 588.0001.162
253 HypeNah 583.0001.153
254 Search Find PWN 583.0001.152
255 1sc 581.0001.148
256 tmizuno 557.0001.104
257 kinakomochi 556.0001.102
258 Before_the_CM 536.0001.065
259 vared 536.0001.065
260 YellowHatN00bs 524.0001.043
261 ZombieBot 512.0001.020
262 DarkerThanOrange 486.0000.973
263 noob-at-bash@protonmail.com 481.0000.963
264 SJCTF 474.0000.950
265 Chozen 456.0000.917
266 8qg 450.0000.906
267 4k3l4rr3 450.0000.905
268 l2ctf 450.0000.905
269 h4ckb1tu5-team 436.0000.879
270 kissMyAscii 433.0000.873
271 us3l3ss 431.0000.869
272 Thomas 431.0000.869
273 etc 424.0000.856
274 KXTI_PineCone 416.0000.841
275 Just Smash It 403.0000.817
276 sugubaka 403.0000.817
277 mnkz 400.0000.811
278 gruf 400.0000.811
279 cyberwarriors 386.0000.785
280 TheF1ash 381.0000.775
281 isok_ 381.0000.775
282 krekel 370.0000.755
283 nanocomp 355.0000.727
284 TLE 350.0000.718
285 EQkws 350.0000.717
286 C4Cyber 350.0000.717
287 Intentions 350.0000.717
288 ketil04@gmail.com 350.0000.716
289 Lei-o 350.0000.716
290 c0d34rmy 350.0000.716
291 0------0 350.0000.716
292 n00bs 350.0000.715
293 DL Academy 331.0000.680
294 fibonacci 331.0000.680
295 skarface 331.0000.680
296 merlynn 324.0000.667
297 Team Burton 324.0000.667
298 t3kk1 324.0000.666
299 cyber.boys@mail.ru 300.0000.622
300 SA 300.0000.622
301 ehc_fptu 300.0000.622
302 HydroflasksPart2 300.0000.622
303 1337 KH 300.0000.621
304 byc_404 300.0000.621
305 Flag_Hunters 300.0000.621
306 TeamTrouble 300.0000.621
307 HKLBGD 300.0000.620
308 s111 300.0000.620
309 Adiath 300.0000.620
310 ETYB 300.0000.620
311 THEATEAM 286.0000.594
312 NullAnVoid 281.0000.585
313 yurufuwa 250.0000.528
314 blckpwny 250.0000.527
315 g3t_r3kt 250.0000.527
316 Ya! haroo 250.0000.527
317 KXTI_MAKHUS 250.0000.527
318 dzsnowings 250.0000.527
319 dignissimus 250.0000.526
320 Cyber Castors 250.0000.526
321 Bissonoob 250.0000.526
322 Z3Ro 250.0000.526
323 koidelab 250.0000.525
324 lp_bobo 250.0000.525
325 HighlifeOP 250.0000.525
326 SundayParan0ids 250.0000.525
327 peirateía 250.0000.525
328 _null0byte_ 250.0000.524
329 p4snet0 250.0000.524
330 Rei Rei 250.0000.524
331 L0stC0d3 250.0000.524
332 Clowders&Kindles 250.0000.524
333 Signal-9 250.0000.523
334 orz 236.0000.498
335 ViperX7 236.0000.497
336 pwn_tokenai 236.0000.497
337 wUMrm 236.0000.497
338 notos 224.0000.475
339 one-by-zero 200.0000.431
340 Hack3rOneness 200.0000.431
341 tnSquad 200.0000.431
342 ReaperOfWorlds 200.0000.430
343 hackerbigbang 200.0000.430
344 DAS 200.0000.430
345 Those who dwells in the marshes 200.0000.430
346 wewwwww 200.0000.430
347 k1r170 200.0000.429
348 Defense Matrix 200.0000.429
349 UPRB_Hackers 200.0000.429
350 Droogy 200.0000.429
351 RedOrBluePill 200.0000.429
352 LulzKek 200.0000.428
353 lammm 200.0000.428
354 Th3_C4r3t4k3r5 200.0000.428
355 HugeGG 200.0000.428
356 fr334aks 200.0000.428
357 The Word Of Fun (TWOF) 200.0000.428
358 ex3x 200.0000.427
359 T3chV3t5-01 200.0000.427
360 Over 200.0000.427
361 NotHotHog 186.0000.401
362 zero 186.0000.401
363 Artificer 174.0000.379
364 Icebreakers 150.0000.335
365 ttfrev 150.0000.335
366 Sn00ginZ 150.0000.335
367 H4adook3n_to_th3_kn33s 150.0000.335
368 pop 150.0000.334
369 sarjames 150.0000.334
370 nolfi 150.0000.334
371 cooperra 150.0000.334
372 exploit0 150.0000.334
373 retsam 150.0000.334
374 PentaHex 150.0000.333
375 BlueEyes77 150.0000.333
376 N0000bs 150.0000.333
377 matdaneth 150.0000.333
378 DayMon 150.0000.333
379 AdiPratama15 150.0000.333
380 대명문전라고 150.0000.332
381 shad0w9 150.0000.332
382 MKIZ 150.0000.332
383 y0f4c3 150.0000.332
384 chrisbex 150.0000.332
385 inotic 131.0000.297
386 non3 131.0000.297
387 triviality 100.0000.240
388 RollingRollOfToiletPaper 100.0000.240
389 Nakatomi Maintenance 100.0000.240
390 DeadSquad 100.0000.240
391 SC 100.0000.239
392 f 100.0000.239
393 CyberCode 100.0000.239
394 OD1E 100.0000.239
395 Part-Time Salty Bois 100.0000.239
396 taurus 100.0000.239
397 Zh3nL5 100.0000.239
398 solostim 100.0000.238
399 Sancelisso 100.0000.238
400 EatMyBullet 100.0000.238
401 CyberGreat 100.0000.238
402 PickleMorty 100.0000.238
403 KXTI_Unity 100.0000.238
404 Null Bytes 100.0000.238
405 Freakazoids 100.0000.238
406 bodhi 100.0000.237
407 bash_brothrers 100.0000.237
408 Justanotherteam 100.0000.237
409 nindroz 100.0000.237
410 UnAnonymous 100.0000.237
411 note_kdia 100.0000.237
412 eWorkaholics 100.0000.237
413 h3RyKidZh33tpubRTY 100.0000.236
414 score_gazer 100.0000.236
415 404 100.0000.236
416 Supermac30 100.0000.236
417 3358 100.0000.236
418 ExploitMe 100.0000.236
419 paradox 100.0000.236
420 hashcat 100.0000.236
421 hack-me 100.0000.235
422 mikejam 100.0000.235
423 P-star* 100.0000.235
424 Binary-killers 100.0000.235
425 S3cuR1tY_J0k3r$ 100.0000.235
426 chewing gum 100.0000.235
427 StrawHatPirates 100.0000.235
428 nhy 100.0000.235
429 mauledkitten 100.0000.234
430 bi0s-kochi 100.0000.234
431 Noob Team 100.0000.234
432 whoisj0hngalt 86.0000.209
433 Whatever 74.0000.186
434 KXTI_Sub 50.0000.143
435 ttww 50.0000.142
436 couscous 50.0000.142
437 dxdragon 50.0000.142
438 ImportantTeam 50.0000.142
439 morelulz 50.0000.142
440 Canary 50.0000.142
441 botb 50.0000.142
442 coronHacker 50.0000.142
443 avnobp 50.0000.141
444 Blue Hens 50.0000.141
445 GNZL 50.0000.141
446 stesla 50.0000.141
447 SchlonkYeeters 50.0000.141
448 cinta 50.0000.141
449 Bakerpower 50.0000.141
450 f0rsaken 50.0000.141
451 stratos 50.0000.141
452 Maple 50.0000.140
453 Niwatori 50.0000.140
454 hello, world 50.0000.140
455 NorthWest 50.0000.140
456 suck3r 50.0000.140
457 outOfCheese 50.0000.140
458 Jojo 50.0000.140
459 HOB 50.0000.140
460 4katsuk1 50.0000.140
461 K22TMT1 50.0000.140
462 kushgo13@gmail.com 50.0000.139
463 CHIqueen 50.0000.139
464 JochiwonMatjip 50.0000.139
465 totem 50.0000.139
466 th3eden3@gmail.com 50.0000.139
467 Honeypot 50.0000.139
468 Blight_Force 50.0000.139
469 texic0n 50.0000.139
470 iidaMS 50.0000.139
471 wurzelPI 50.0000.139
472 Daredevils 50.0000.138
473 test team please ignore 50.0000.138
474 YHLQMDLG 50.0000.138
475 Phoeby 50.0000.138
476 TortillatheHun 50.0000.138
477 L4V450N 50.0000.138
478 WhoAreWe? 50.0000.138
479 RLPWN3R 50.0000.138
480 new phone, whoami 50.0000.138
481 A*0*E 50.0000.138
482 redpwn 50.0000.137
483 More Smoked Leet Chicken 50.0000.137
484 incogpicto 50.0000.137
485 blubberbeans 50.0000.137
486 N00b 50.0000.137
487 wcg6m 50.0000.137
488 arpuebo 50.0000.137
489 bap 50.0000.137
490 Uno 50.0000.137
491 n000bs 50.0000.137
492 um 50.0000.136
493 Nishkarsh 50.0000.136
494 poob 50.0000.136
495 ru7ynk4 50.0000.136
496 Treeman 50.0000.136
497 Ballmerpeaking 50.0000.136
498 Omega 50.0000.136
499 CoolBob 50.0000.136
500 qweq 50.0000.068
0xRetr0May 29, 2020, 8:11 p.m.

the servers are like impossible to reach


shell.pwnMay 29, 2020, 8:23 p.m.

I can' access their web page, it seems that their servers are down.


LEDMay 29, 2020, 8:24 p.m.

same. also could someone post a link to the discord that is mentioned in the readme? thx a lot!


SnooginzMay 29, 2020, 8:30 p.m.

can't access web server...


0xRetr0May 29, 2020, 8:33 p.m.

and the discord is not mentionned .


LEDMay 29, 2020, 9:28 p.m.

working. But still, if anyone has a link to their discord that would be awesome!


sshubhamk1May 30, 2020, 12:24 a.m.

can't access the server


DHTMay 30, 2020, 12:46 a.m.

When will the server be fixed?


athul26167691May 30, 2020, 2:10 a.m.

Still unable to reach the server


WhoInGodsNameMay 30, 2020, 3:22 a.m.

Holy crap the servers are slow


nhcMay 30, 2020, 3:30 a.m.

change the website to gg.cybercastors.com


athul26167691May 30, 2020, 4:41 a.m.

Thanks for notifying the change of url, but its still very slow.


c3p0xrtMay 30, 2020, 6:11 a.m.

gg.cybercastors.com => This is not opening now.


SnooginzMay 30, 2020, 6:12 a.m.

site very slow, keeps crashing and I've lost point on submitting my flags and not registering my flags... I'm done!


RazviMay 30, 2020, 7:45 a.m.

Pretty much unplayable. Been trying for over 12 hours to load the main site. I achieved nothing but several error pages, including Cloudflare's 522.


RazviMay 30, 2020, 7:50 a.m.

If anyone sees this message and is still interested in they discord, this is the url: https://discord.gg/wjbHMNz


RazviMay 30, 2020, 7:50 a.m.

Their*


icYFTL_RUMay 30, 2020, 12:38 p.m.

Still imposible to reach


SnooginzMay 30, 2020, 4:36 p.m.

I've given up on this CTF..


crowded-geekJune 1, 2020, 1:19 a.m.

The challs were really nice like the organisers :-)


woaJune 1, 2020, 8:56 a.m.

where is the scoreboard?