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: 21.77 

Rating weight: 21.77 

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 12164.00043.540
2 bootplug 12164.00032.655
3 from Sousse, with love 12164.00029.027
4 Bat Squad 12164.00027.213
5 pwnthem0le 11671.00025.242
6 OpenToAll 11192.00023.659
7 burner_herz0g 11175.00023.110
8 hackerbang 10685.00021.844
9 Pwnium 9769.00019.903
10 Gangsters 9758.00019.641
11 L33t Dev 9757.00019.441
12 The Order of Bit 9702.00019.178
13 h4ck3rb0b 9258.00018.244
14 MyVseUronili 9225.00018.065
15 hackerbang2 9213.00017.940
16 A1ph4Z3r0 9035.00017.531
17 panzeroot# 8758.00016.955
18 Plaid Parliament of Pwning 8501.00016.424
19 Zh3r0_0ffici4l 8306.00016.011
20 OSUSEC 8256.00015.864
21 Fword 8239.00015.782
22 TeamCC 7867.00015.069
23 CYberMouflons 7799.00014.904
24 kemankeş 7556.00014.430
25 pwndr3 7426.00014.161
26 Corax 7339.00013.972
27 ByteForc3 7311.00013.891
28 Cyberlabs 6987.00013.282
29 IPFactory 6954.00013.196
30 0x90r00t 6929.00013.127
31 Zense 6745.00012.774
32 beerpwn 6685.00012.645
33 ZeroMemory 6584.00012.443
34 SWV_L 6576.00012.409
35 fearless 6016.00011.389
36 DarkArmy 5962.00011.275
37 noraneco 5725.00010.834
38 break_the_code 5662.00010.706
39 0xpwn 5338.00010.112
40 CSI 5197.0009.845
41 warlock_rootx 5189.0009.818
42 Shonan 5185.0009.798
43 asdf 4974.0009.408
44 onotch 4947.0009.348
45 Defenit 4893.0009.241
46 PROACTIVE 4875.0009.198
47 MakMakBak 4753.0008.970
48 rizemon 4723.0008.906
49 Tsami 4593.0008.664
50 Tebas 4574.0008.622
51 Team Fr34ks 4448.0008.387
52 naver 4436.0008.358
53 Cáerme 4397.0008.280
54 xor and the half adder 4327.0008.147
55 whocares 4035.0007.617
56 DDoS(Dauntless Department of Sentinels) 4005.0007.557
57 nkj 3959.0007.467
58 SushiRoll 3928.0007.405
59 threat.club 3922.0007.388
60 PTZCTF 3877.0007.302
61 LinyTail 3819.0007.192
62 M.2 3815.0007.179
63 Dashu 3813.0007.170
64 zer0byte 3778.0007.102
65 cyb3r_w1z4rd5 3740.0007.028
66 Hacky Easter 3711.0006.971
67 KUDoS 3645.0006.848
68 y4chtclub 3531.0006.640
69 LetzPwn 3356.0006.322
70 (mendung)10^6 3298.0006.213
71 tete2soja 3273.0006.164
72 HackingForSoju 3209.0006.046
73 CSY54 3186.0006.000
74 x0rc3r3rs 3145.0005.923
75 NULLKrypt3rs 3100.0005.838
76 KDB 3092.0005.820
77 acdwas 3048.0005.738
78 derp 3046.0005.731
79 quintuplecs 3041.0005.718
80 KogCoder 3035.0005.704
81 Spikers 3018.0005.670
82 nullptr 3010.0005.653
83 BoRa9 3000.0005.631
84 S1gm0id 2991.0005.612
85 OAAOAOAO 2967.0005.566
86 fLAGers 2917.0005.474
87 PolloETroie 2914.0005.465
88 NuttyShell 2756.0005.180
89 LoIicore 2753.0005.172
90 JHDiscord 2751.0005.165
91 Team Woa 2708.0005.086
92 c0d3_h4cki05_ 2686.0005.044
93 APT593 2646.0004.970
94 Pwnie Island 2634.0004.946
95 Sky2Pwn 2631.0004.938
96 LibcHasReturned 2625.0004.925
97 STNKS 2599.0004.876
98 dex 2591.0004.859
99 echobash 2574.0004.827
100 interr0b4ngs 2566.0004.810
101 wiwam845 2545.0004.770
102 Lions 2507.0004.700
103 Hus@r1@ 2491.0004.670
104 tellmewhy 2490.0004.666
105 ky0muge2 2437.0004.569
106 PwnaSonic 2411.0004.520
107 Mee Kolok Sigek 2406.0004.509
108 r00tstici 2382.0004.465
109 OrderofShadows 2372.0004.445
110 W3rni0 2370.0004.440
111 ph03n1x 2349.0004.400
112 qemutherapy 2333.0004.370
113 CSUI_RISTEK_NOOB 2332.0004.366
114 The WINRaRs 2326.0004.354
115 Astra 2317.0004.336
116 info info 2295.0004.295
117 thrumbos 2252.0004.216
118 PWN.rar 2205.0004.131
119 yamiza 2181.0004.086
120 Rage Against The Madame 2175.0004.074
121 Cat Training Force 2077.0003.897
122 Robert'); DROP TABLE Teams;-- 2075.0003.892
123 h4ck7u5 2042.0003.832
124 killswitch 2038.0003.823
125 InfosecIITG 2030.0003.807
126 polpol 1988.0003.731
127 Department of Defense against Digital Dark Arts 1939.0003.642
128 nguyendqn 1939.0003.640
129 StarLabs 1914.0003.594
130 cyberstudents 1911.0003.588
131 R4ND0M 1906.0003.577
132 Aseng 1824.0003.429
133 Covid Killers 1809.0003.401
134 Superrrrr 1801.0003.386
135 Iam9r00t 1769.0003.327
136 tienuit 1768.0003.324
137 SpeedwagonFoundation 1766.0003.320
138 XYZ-default 1761.0003.309
139 sazouki 1750.0003.289
140 Code Black 1721.0003.236
141 kkk 1719.0003.231
142 늘어난고무줄양말 1718.0003.228
143 BL00PERS 1697.0003.189
144 imAlone:( 1667.0003.135
145 fitE mE DeVIn 1641.0003.087
146 ISwearIGoogledIt 1637.0003.079
147 Dark Motel 1621.0003.049
148 noTeamName 1618.0003.043
149 OverDover 1563.0002.943
150 pixir65223 1559.0002.935
151 Pengen Menanghiks 1535.0002.891
152 0x435446 1512.0002.849
153 Kuruwa 1481.0002.793
154 RootBeer 1472.0002.776
155 CBF 1466.0002.764
156 BADSUD0'S 1463.0002.758
157 UGASCS 1450.0002.734
158 WAMTeam 1417.0002.674
159 kanyewest 1400.0002.643
160 hack^3 1397.0002.636
161 Soljanka 1389.0002.621
162 ri5e 1385.0002.613
163 hardcode 1379.0002.602
164 pth 1367.0002.579
165 crayontheft 1304.0002.466
166 stankc 1299.0002.456
167 Iceclue 1286.0002.432
168 N33rdZ 1245.0002.358
169 ampastahu 1217.0002.307
170 HackAndRol 1214.0002.301
171 0xPwny 1197.0002.270
172 N00B_4rMY 1194.0002.263
173 kks_KeKoS_Team 1166.0002.213
174 printfbuf 1163.0002.207
175 binLep 1163.0002.206
176 DragonSec SI 1163.0002.205
177 thisisaname 1141.0002.165
178 N00B3s 1132.0002.148
179 FluffyPeople 1124.0002.133
180 Still DIGing 1105.0002.099
181 tsustyle 1105.0002.098
182 Schr0ding3r5 1101.0002.090
183 UIT.SoloQ 1088.0002.066
184 dcua 1077.0002.046
185 nuk3 1072.0002.036
186 spoilers 1060.0002.014
187 joopyjoo 1056.0002.006
188 pcback 1037.0001.972
189 iust 1030.0001.959
190 lapinouteam 1024.0001.947
191 p2n 1024.0001.947
192 rycbar 996.0001.896
193 Kuality 995.0001.894
194 Ctrl Nerds 974.0001.855
195 Jurassic-Hacks 970.0001.848
196 pwnPrime 965.0001.838
197 common 956.0001.821
198 Sonseon 952.0001.814
199 RPCA Cyber Club 950.0001.810
200 winnie 947.0001.804
201 AmIRight 936.0001.783
202 R'Hackette 927.0001.767
203 raining_shell 900.0001.718
204 [SHP]-HiddenFileVillage 898.0001.714
205 N0N@me13 894.0001.706
206 p0isonP4wn 889.0001.697
207 UMDCSEC 881.0001.682
208 Njord 873.0001.667
209 fzhshzh 862.0001.647
210 Rohnugu 860.0001.643
211 Super Heroes In Training 857.0001.637
212 Josh On Bench 857.0001.636
213 SemCert 855.0001.632
214 Globsec 827.0001.582
215 Necron3574 821.0001.571
216 bl0cch1_53qu3nzi4l1 818.0001.565
217 alphablack 816.0001.561
218 ayam 813.0001.555
219 vanhelsing 808.0001.545
220 intergalactic_unicorns 806.0001.541
221 reg_time 805.0001.539
222 shaboi 786.0001.505
223 obtain_r00t 774.0001.483
224 CNHN 772.0001.479
225 TorkyBlorky 772.0001.478
226 Ghostofsparta 762.0001.460
227 flag{}___Orz 762.0001.460
228 TURB0SPURG0 760.0001.456
229 El10n 758.0001.452
230 Can't do anything 736.0001.412
231 April Showers 736.0001.411
232 so_noob 733.0001.406
233 p0x82s 724.0001.389
234 lmntrix 724.0001.389
235 clarissa 723.0001.387
236 Alone gang 719.0001.379
237 kanbedon 708.0001.359
238 hacktical 707.0001.357
239 JustNotBob 700.0001.344
240 SPQR 700.0001.344
241 somenoob 698.0001.340
242 smolsbs 662.0001.275
243 prabhanjanmannari@gmail.com 657.0001.265
244 anonymous_animals 650.0001.253
245 ahsh3r 650.0001.252
246 Team ForFun 650.0001.252
247 spencer.keshawn8665@instasmail.com 644.0001.241
248 0x1337deadbeef 633.0001.221
249 allpurposebucket 624.0001.204
250 Fweefwop 619.0001.195
251 TheBlackPearl 605.0001.170
252 Blueberry_Pie 588.0001.139
253 HypeNah 583.0001.129
254 Search Find PWN 583.0001.129
255 1sc 581.0001.125
256 tmizuno 557.0001.082
257 kinakomochi 556.0001.080
258 Before_the_CM 536.0001.044
259 vared 536.0001.043
260 YellowHatN00bs 524.0001.022
261 ZombieBot 512.0001.000
262 DarkerThanOrange 486.0000.953
263 noob-at-bash@protonmail.com 481.0000.944
264 SJCTF 474.0000.931
265 Chozen 456.0000.898
266 8qg 450.0000.887
267 4k3l4rr3 450.0000.887
268 l2ctf 450.0000.887
269 h4ckb1tu5-team 436.0000.861
270 kissMyAscii 433.0000.856
271 us3l3ss 431.0000.852
272 Thomas 431.0000.851
273 etc 424.0000.839
274 KXTI_PineCone 416.0000.824
275 Just Smash It 403.0000.800
276 sugubaka 403.0000.800
277 mnkz 400.0000.794
278 gruf 400.0000.794
279 cyberwarriors 386.0000.769
280 TheF1ash 381.0000.760
281 isok_ 381.0000.759
282 krekel 370.0000.739
283 nanocomp 355.0000.712
284 TLE 350.0000.703
285 EQkws 350.0000.703
286 C4Cyber 350.0000.703
287 Intentions 350.0000.702
288 ketil04@gmail.com 350.0000.702
289 Lei-o 350.0000.702
290 c0d34rmy 350.0000.701
291 0------0 350.0000.701
292 n00bs 350.0000.701
293 DL Academy 331.0000.667
294 fibonacci 331.0000.666
295 skarface 331.0000.666
296 merlynn 324.0000.653
297 Team Burton 324.0000.653
298 t3kk1 324.0000.653
299 cyber.boys@mail.ru 300.0000.610
300 SA 300.0000.609
301 ehc_fptu 300.0000.609
302 HydroflasksPart2 300.0000.609
303 1337 KH 300.0000.609
304 byc_404 300.0000.609
305 Flag_Hunters 300.0000.608
306 TeamTrouble 300.0000.608
307 HKLBGD 300.0000.608
308 s111 300.0000.608
309 Adiath 300.0000.607
310 ETYB 300.0000.607
311 THEATEAM 286.0000.582
312 NullAnVoid 281.0000.573
313 yurufuwa 250.0000.517
314 blckpwny 250.0000.517
315 g3t_r3kt 250.0000.517
316 Ya! haroo 250.0000.516
317 KXTI_MAKHUS 250.0000.516
318 dzsnowings 250.0000.516
319 dignissimus 250.0000.516
320 Cyber Castors 250.0000.515
321 Bissonoob 250.0000.515
322 Z3Ro 250.0000.515
323 koidelab 250.0000.515
324 lp_bobo 250.0000.515
325 HighlifeOP 250.0000.514
326 SundayParan0ids 250.0000.514
327 peirateía 250.0000.514
328 _null0byte_ 250.0000.514
329 p4snet0 250.0000.514
330 Rei Rei 250.0000.513
331 L0stC0d3 250.0000.513
332 Clowders&Kindles 250.0000.513
333 Signal-9 250.0000.513
334 orz 236.0000.488
335 ViperX7 236.0000.487
336 pwn_tokenai 236.0000.487
337 wUMrm 236.0000.487
338 notos 224.0000.465
339 one-by-zero 200.0000.422
340 Hack3rOneness 200.0000.422
341 tnSquad 200.0000.422
342 ReaperOfWorlds 200.0000.422
343 hackerbigbang 200.0000.421
344 DAS 200.0000.421
345 Those who dwells in the marshes 200.0000.421
346 wewwwww 200.0000.421
347 k1r170 200.0000.421
348 Defense Matrix 200.0000.420
349 UPRB_Hackers 200.0000.420
350 Droogy 200.0000.420
351 RedOrBluePill 200.0000.420
352 LulzKek 200.0000.420
353 lammm 200.0000.420
354 Th3_C4r3t4k3r5 200.0000.419
355 HugeGG 200.0000.419
356 fr334aks 200.0000.419
357 The Word Of Fun (TWOF) 200.0000.419
358 ex3x 200.0000.419
359 TechVetsUK 200.0000.419
360 Over 200.0000.418
361 NotHotHog 186.0000.393
362 zero 186.0000.393
363 Artificer 174.0000.371
364 Icebreakers 150.0000.328
365 ttfrev 150.0000.328
366 Sn00ginZ 150.0000.328
367 H4adook3n_to_th3_kn33s 150.0000.328
368 pop 150.0000.328
369 sarjames 150.0000.327
370 nolfi 150.0000.327
371 cooperra 150.0000.327
372 exploit0 150.0000.327
373 retsam 150.0000.327
374 PentaHex 150.0000.327
375 BlueEyes77 150.0000.327
376 N0000bs 150.0000.326
377 [sqrt (-1) + 1] 150.0000.326
378 DayMon 150.0000.326
379 AdiPratama15 150.0000.326
380 대명문전라고 150.0000.326
381 shad0w9 150.0000.326
382 MKIZ 150.0000.325
383 y0f4c3 150.0000.325
384 chrisbex 150.0000.325
385 inotic 131.0000.291
386 non3 131.0000.291
387 triviality 100.0000.235
388 RollingRollOfToiletPaper 100.0000.235
389 Nakatomi Maintenance 100.0000.235
390 DeadSquad 100.0000.235
391 SC 100.0000.235
392 f 100.0000.235
393 CyberCode 100.0000.234
394 OD1E 100.0000.234
395 Part-Time Salty Bois 100.0000.234
396 taurus 100.0000.234
397 Zh3nL5 100.0000.234
398 solostim 100.0000.234
399 Sancelisso 100.0000.234
400 EatMyBullet 100.0000.233
401 CyberGreat 100.0000.233
402 PickleMorty 100.0000.233
403 KXTI_Unity 100.0000.233
404 Null Bytes 100.0000.233
405 Freakazoids 100.0000.233
406 bodhi 100.0000.233
407 bash_brothrers 100.0000.232
408 Justanotherteam 100.0000.232
409 nindroz 100.0000.232
410 UnAnonymous 100.0000.232
411 note_kdia 100.0000.232
412 eWorkaholics 100.0000.232
413 h3RyKidZh33tpubRTY 100.0000.232
414 score_gazer 100.0000.232
415 404 100.0000.231
416 Supermac30 100.0000.231
417 3358 100.0000.231
418 ExploitMe 100.0000.231
419 paradox 100.0000.231
420 hashcat 100.0000.231
421 hack-me 100.0000.231
422 mikejam 100.0000.231
423 P-star* 100.0000.230
424 Binary-killers 100.0000.230
425 S3cuR1tY_J0k3r$ 100.0000.230
426 chewing gum 100.0000.230
427 StrawHatPirates 100.0000.230
428 nhy 100.0000.230
429 mauledkitten 100.0000.230
430 bi0s-kochi 100.0000.230
431 Noob Team 100.0000.229
432 whoisj0hngalt 86.0000.204
433 Whatever 74.0000.183
434 KXTI_Sub 50.0000.140
435 ttww 50.0000.140
436 couscous 50.0000.139
437 dxdragon 50.0000.139
438 ImportantTeam 50.0000.139
439 morelulz 50.0000.139
440 Canary 50.0000.139
441 botb 50.0000.139
442 coronHacker 50.0000.139
443 avnobp 50.0000.139
444 Blue Hens 50.0000.139
445 GNZL 50.0000.138
446 stesla 50.0000.138
447 SchlonkYeeters 50.0000.138
448 cinta 50.0000.138
449 Bakerpower 50.0000.138
450 f0rsaken 50.0000.138
451 stratos 50.0000.138
452 Maple 50.0000.138
453 Niwatori 50.0000.138
454 hello, world 50.0000.137
455 NorthWest 50.0000.137
456 suck3r 50.0000.137
457 outOfCheese 50.0000.137
458 Jojo 50.0000.137
459 HOB 50.0000.137
460 4katsuk1 50.0000.137
461 K22TMT1 50.0000.137
462 kushgo13@gmail.com 50.0000.137
463 CHIqueen 50.0000.137
464 JochiwonMatjip 50.0000.136
465 totem 50.0000.136
466 th3eden3@gmail.com 50.0000.136
467 Honeypot 50.0000.136
468 Blight_Force 50.0000.136
469 texic0n 50.0000.136
470 iidaMS 50.0000.136
471 wurzelPI 50.0000.136
472 Daredevils 50.0000.136
473 test team please ignore 50.0000.136
474 YHLQMDLG 50.0000.135
475 Phoeby 50.0000.135
476 TortillatheHun 50.0000.135
477 L4V450N 50.0000.135
478 WhoAreWe? 50.0000.135
479 RLPWN3R 50.0000.135
480 new phone, whoami 50.0000.135
481 A*0*E 50.0000.135
482 redpwn 50.0000.135
483 More Smoked Leet Chicken 50.0000.135
484 incogpicto 50.0000.134
485 blubberbeans 50.0000.134
486 N00b 50.0000.134
487 wcg6m 50.0000.134
488 arpuebo 50.0000.134
489 bap 50.0000.134
490 Uno 50.0000.134
491 n000bs 50.0000.134
492 um 50.0000.134
493 Nishkarsh 50.0000.134
494 poob 50.0000.134
495 ru7ynk4 50.0000.133
496 Treeman 50.0000.133
497 Ballmerpeaking 50.0000.133
498 Omega 50.0000.133
499 CoolBob 50.0000.133
500 qweq 50.0000.067
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


taidhMay 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


boboaMay 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?