CTFtime.org

US b01lers

Also known as
  • Cornfield Computer Crew
  • b01lersCTF

Academic team Purdue University

Website: https://b01lers.com

Website: https://b01lers.net

Twitter: https://twitter.com/b01lers

Sign in to join the team.



Purdue university's capture the flag team. Open to any Purdue student regardless of experience level.

CornfieldComputerCrew = Purdue University (b01lers) + The Ohio State University (csosu) + UIUC (SIGPwny)

Participated in CTF events

Overall rating place: 31 with 515.513 pts in 2025

Country place: 4

PlaceEventCTF pointsRating points
1BuckeyeCTF 202510132.0000100.000
174Infobahn CTF 2025600.00000.000*
18N1CTF 20251097.000027.989
76Haunted Pumpkin CTF '252948.00000.000
41V1t CTF 20254355.000010.730
10osu!gaming CTF 20255025.000016.302
25m0leCon CTF 2026 Teaser544.000022.255
40Hack.lu CTF 20251343.000026.636
12jailCTF 20251650.00004.723
9Iran Tech Olympics CTF 20252993.000015.301
12CrewCTF 20252812.000017.248
73CSAW CTF Qualification Round 20254037.00008.210
57DefCamp Capture the Flag (D-CTF) 2025 Quals1185.000011.130
9ImaginaryCTF 20255652.000044.208
7corCTF 20253822.000053.872
182SekaiCTF 2025439.00004.439
108idekCTF 2025719.00004.632
19UIUCTF 20251847.000040.613
149DownUnderCTF 20252391.000019.196
191L3akCTF 2025969.00001.764
161Google Capture The Flag 2025219.00003.382
123smileyCTF 2025526.00003.480
118bi0sCTF 2025 110.00001.319
54Grey Cat The Flag 20255941.000011.798
128D^3CTF 2025400.00003.480
268NahamCon CTF 20251829.00006.398
15San Diego CTF 20251325.00008.872
28UMDCTF 20258058.000036.791
12PwnMe CTF Finals 2025350.00000.000
351PlaidCTF 20251.00000.308
23DiceCTF 2025 Quals1866.000033.008
16WolvCTF 20258363.000029.680
32UTCTF 202512856.000060.352
93KalmarCTF 2025629.00002.799
96Pearl CTF1100.00004.485
26PwnMe CTF Quals 20253765.000010.617
10LA CTF 202510756.000026.507
77BITSCTF 20251599.00003.839
29Nullcon Goa HackIM 2025 CTF1822.000015.100
13x3CTF 2025 (feat. mvm)2522.000011.264

Overall rating place: 78 with 367.468 pts in 2024

Country place: 9

PlaceEventCTF pointsRating points
300xL4ugh CTF960.00004.000
1200CTF 202470.00001.518
80LakeCTF Quals 24-25431.00003.467
178World Wide CTF 2024413.00001.295
65SECCON CTF 13 Quals614.000016.023
14 GlacierCTF 20242542.000014.216
211337UP LIVE CTF4056.000012.555
5CSAW CTF Final Round 20243539.000027.235
50Hack The Vote 2024401.00002.847
197ISITDTU CTF 2024 Quals50.00000.707
20Hack.lu CTF 20241110.000029.877
30DEADFACE CTF 20245843.000019.529
4TCP1P CTF 2024: Exploring Nusantara's Digital Realm7330.000022.894
98IRON CTF 20242583.00004.066
7BuckeyeCTF 20245471.000042.361
58ASIS CTF Quals 2024175.00003.003
8PatriotCTF 202412650.000025.974
15jailCTF 20247667.00009.433
36m0leCon CTF 2025 Teaser254.00006.777
1CSAW CTF Qualification Round 20246405.000043.600
8CyberSpace CTF 20249743.000017.750
16SekaiCTF 20241930.000014.814
16CrewCTF 20242529.00008.921
14corCTF 20242086.000024.292
112ImaginaryCTF 20242034.00007.264
425HITCON CTF 2024 Quals50.00000.826
66DownUnderCTF 20243323.000020.171
22UIUCTF 20248339.000047.859
88Google Capture The Flag 2024385.00006.125
28vsCTF 20244868.000015.898
20Akasec CTF 20243743.00006.882
10 GPN CTF 20242540.000012.449
16NahamCon CTF 202413695.000030.170
9TJCTF 20245192.000023.779
5San Diego CTF 20242467.000019.695
42DEF CON CTF Qualifier 2024208.00005.961
20UMDCTF 20249483.000033.568
34Grey Cat The Flag 2024 Qualifiers4211.00007.265
14UMassCTF 20244908.000025.224
110Space Heroes 2024925.00002.190
13CursedCTF 2024 Quals6831.00008.488
47LINE CTF 2024584.00008.972
16osu!gaming CTF 20245432.000016.152
51bi0sCTF 20241808.000011.464
16BraekerCTF1256.00009.525
23LA CTF 202411702.000016.381
150xL4ugh CTF 20243354.000011.289
81DiceCTF 2024 Quals836.00008.529
37TetCTF 20241057.000010.065

Overall rating place: 79 with 319.718 pts in 2023

Country place: 8

PlaceEventCTF pointsRating points
209ASIS CTF Finals 202330.00000.841
48TUCTF 20231825.00005.429
9Square CTF 20231951.000023.891
76LakeCTF Quals 23250.00002.032
9SpookyCTF 20239585.000018.063
18BlueHens CTF 202310345.000015.171
7Reply Cyber Security Challenge 20232952.000012.639
7TCP1P CTF 2023: First Step Beyond Nusantara7105.000016.826
2BuckeyeCTF 20239726.000050.413
47ASIS CTF Quals 2023353.00008.457
36CSAW CTF Qualification Round 20236413.000014.101
55HITCON CTF 2023 Quals494.00008.682
34DownUnderCTF 20234804.000020.055
60SekaiCTF 20231563.00004.144
24UIUCTF 20231936.000021.301
55Google Capture The Flag 20231129.000016.164
51NahamCon CTF 20239239.000016.559
28SEETF 20234473.00006.571
9DanteCTF 20234957.000018.149
38DEF CON CTF Qualifier 2023536.000012.919
22Grey Cat The Flag 2023 Qualifiers3141.000011.690
17VolgaCTF 2023 Qualifier1414.000014.901
40TAMUctf 20236837.000017.174
61ångstromCTF 20231510.000041.759
7Space Heroes 202313039.000018.855
30PlaidCTF 2023848.000028.662
30Midnight Sun CTF 2023 Quals2190.000017.165
68cursedCTF 20231381.00002.637
11RITSEC CTF 20236167.000022.954
41KalmarCTF 20231927.00003.454
40HackTM CTF Quals 2023945.00005.032
29LA CTF 202310021.000016.601
83DiceCTF 2023743.00005.280
52bi0sCTF 2022583.00003.425
85KnightCTF 20231600.00006.090
30idekCTF 2022*5684.00007.195

Overall rating place: 80 with 251.259 pts in 2022

Country place: 10

PlaceEventCTF pointsRating points
55HITCON CTF 2022787.000012.691
14Square CTF 20222051.000019.292
14ISITDTU CTF 2022 Quals3672.000021.007
13CSAW CTF Final Round 20222874.00000.000
15BuckeyeCTF 20224207.000013.076
54Hack.lu CTF 2022788.000011.374
22ASIS CTF Quals 20221120.000030.233
143GDG Algiers CTF 2022320.00000.707
31DownUnderCTF 2022 (Online) 5684.000012.034
6CSAW CTF Qualification Round 20229030.000027.650
16MapleCTF 20222822.00008.721
65UIUCTF 2022903.00003.736
76DEF CON CTF Qualifier 2022147.00005.343
5TAMUctf 20225554.000020.705
82CrewCTF 20221226.00001.334
27PlaidCTF 2022801.000028.471
63UMassCTF 20221250.00004.230
128RITSEC CTF 2022996.00003.189
41UMDCTF 20228036.000010.299
35MHSCTF 2022970.00000.000
105DiceCTF 2022488.00002.136
252Insomni'hack teaser 20228.00000.137
118Real World CTF 4th99.00001.711

Overall rating place: 83 with 221.415 pts in 2021

Country place: 12

PlaceEventCTF pointsRating points
30K3RN3LCTF2810.00006.915
134DamCTF 20211898.00005.877
104Hack.lu CTF 2021292.00005.871
16BuckeyeCTF 20213353.000014.030
252DEADFACE CTF1700.00003.931
296TSG CTF 2021200.00001.735
8SunshineCTF 20211013.000012.517
125CSAW CTF Qualification Round 20212123.00000.000
162ALLES! CTF 2021237.00002.241
38FwordCTF 20213744.00004.649
27UIUCTF 20212586.00006.468
4130CTF/TCTF 2021 Quals 24.00000.436
47Hack-A-Sat 2 Qualifiers437.00000.000
70HSCTF 810381.000014.494
70BCACTF 2.03875.00000.000
8TAMUctf 20214450.00000.000
17PlaidCTF 20212591.000048.107
56RITSEC CTF 20214150.00000.000
125UMassCTF 20211240.00003.921
36UTCTF 202116608.000017.026
38Union CTF 20211008.00004.465
155DiceCTF 2021445.00002.483
249justCTF [*] 2020150.00001.014
250x41414141 CTF11837.00000.000

Overall rating place: 89 with 234.509 pts in 2020

Country place: 12

PlaceEventCTF pointsRating points
496hxp CTF 202019.00000.410
124HITCON CTF 202050.00001.763
63Dragon CTF 2020412.00009.774
38Block CTF 2020501.00008.576
35SunshineCTF 2020932.00006.604
20CyberYoddha CTF 20209860.000018.799
58Hack.lu CTF 20201152.000020.831
183N1CTF 202069.00000.422
11DamCTF 20205145.000013.661
72DarkCTF6605.00006.556
37TokyoWesterns CTF 6th 20201538.000032.919
99CSAW CTF Qualification Round 20201505.000020.754
44ALLES! CTF 2020866.00004.796
41FwordCTF 20205082.00007.091
279Google Capture The Flag 2020137.00002.178
31UIUCTF 20201240.00003.859
88Hack-A-Sat Qualifiers249.00001.853
250PlaidCTF 20201.00000.388
296DawgCTF 20201245.00002.708
165Midnight Sun CTF 2020 Quals265.00002.602
185X-MAS GTF 2020343.00000.000
403VolgaCTF 2020 Qualifier100.00000.860
16TAMUctf 20209993.00000.000
69ångstromCTF 20202965.000018.003
452UTCTF 2020252.00000.258
12UCSB iCTF 2020184947.26008.868
238Codegate CTF 2020 Preliminary1.00000.077
225HackTM CTF Quals 2020244.00000.682
261Insomni'hack teaser 202072.00001.926

Overall rating place: 160 with 140.531 pts in 2019

Country place: 17

PlaceEventCTF pointsRating points
194TUCTF 20194799.00009.782
14RITSEC CTF 20195963.000011.159
28Newbie CTF(N-CTF) 20198968.00000.000
428SECCON 2019 Online CTF100.00000.706
149HITCON CTF 2019 Quals155.00003.097
193Square CTF 2019100.00000.445
80Balsn CTF 2019106.00000.644
231Newark Academy CTF 20193185.00008.843
196CSAW CTF Qualification Round 2019501.00004.136
56DefCamp CTF Qualification 2019492.00002.984
132TokyoWesterns CTF 5th 2019305.00008.760
283redpwnCTF 2019400.00000.782
151ISITDTU CTF 2019 Quals210.00000.479
366Facebook CTF 2019101.00000.175
41Security Fest 20191397.00007.845
229DEF CON CTF Qualifier 2019202.00003.400
47Blaze CTF 2019840.00006.530
211ASIS CTF Quals 201930.00000.615
76PlaidCTF 2019911.000016.191
8SwampCTF 20195588.000017.404
491ENCRYPT CTF76.00000.447
52SunshineCTF 2019805.00005.840
253b00t2root '1950.00000.244
154VolgaCTF 2019 Qualifier450.00003.923
1100CTF/TCTF 2019 Quals216.00003.901
139UCSB iCTF 201961.080021.292
197Pragyan CTF 2019425.00002.790
19TAMUctf 1918765.000032.726
60FireShell CTF 2019584.00002.505
195Insomni'hack teaser 201951.00001.064

Overall rating place: 152 with 117.826 pts in 2018

Country place: 15

PlaceEventCTF pointsRating points
44BCTF 2018856.00002.187
24RITSEC CTF 20183711.000011.079
153HITCON CTF 2018150.00002.416
89Hack.lu CTF 2018636.00009.469
53Teaser Dragon CTF 2018297.00003.776
39DefCamp CTF Qualification 2018722.00005.340
200CSAW CTF Qualification Round 20181001.00005.602
32HackIT CTF 20181366.00003.101
24TokyoWesterns CTF 4th 20181786.000028.668
168Security Fest CTF102.00001.451
107Blaze CTF 2018840.00002.899
47Midnight Sun CTF 2018 Quals260.00002.803
29UIUCTF 2018402.00003.076
204Nuit du Hack CTF Quals 20181.00000.242
67VolgaCTF 2018 Quals760.00006.125
13UCSB iCTF 201855852.000034.970
245NeverLAN CTF 20181010.00002.079
141TAMUctf 182524.00009.695
194nullcom HackIM 2018150.00000.566
303Insomni'hack teaser 201837.00000.631

Overall rating place: 176 with 82.321 pts in 2017

Country place: 19

PlaceEventCTF pointsRating points
423TUCTF 2017276.00001.260
326hxp CTF 20171.00000.094
76HCTF 2017171.54000.687
140HITCON CTF 2017 Quals331.00004.593
69Hack Dat Kiwi 2017435.00003.314
12Block CTF 20175615.000026.539
16DefCamp CTF Qualification 2017989.00005.311
138CSAW CTF Qualification Round 20171576.00006.214
94ASIS CTF Finals 2017307.00002.823
86Tokyo Westerns CTF 3rd 2017360.00004.835
105HackIT CTF 2017250.00001.280
191SHA2017 CTF500.00002.638
130Security Fest 2017160.00001.350
78PlaidCTF 2017712.000012.019
90BCTF 2017353.00000.884
203ASIS CTF Quals 201729.00000.389
300Nuit du Hack CTF Quals 201735.00000.450
304VolgaCTF 2017 Quals250.00001.404
3810CTF 2017 Quals12.00000.192
60UCSB iCTF 201735696.50361.022
118Boston Key Party CTF 2017401.00005.628
288Codegate 2017 prequals50.00000.569
119AlexCTF1590.000011.045

Overall rating place: 97 with 148.965 pts in 2016

Country place: 11

PlaceEventCTF pointsRating points
9833C3 CTF475.00007.084
397SECCON 2016 Online CTF300.00001.460
314Hack The Vote 2016151.00000.691
147HITCON CTF 2016 Quals300.00004.000
45TUM CTF 2016643.00003.495
95DefCamp CTF Qualification 2016200.00001.051
79CSAW CTF Qualification Round 20161876.00009.112
73WhiteHat Contest 12100.00000.682
165Tokyo Westerns/MMA CTF 2nd 2016310.00002.858
461CTF(x) 20161.00000.000
378ASIS CTF Quals 20161.00000.111
49Google Capture The Flag 20161645.00008.121
50PlaidCTF 20161077.000023.095
87Nuit du Hack CTF Quals 2016850.000010.277
471Pwn2Win CTF 20160.00000.000
77VolgaCTF 2016 Quals900.00004.578
34BCTF 20161115.00008.025
223SunshineCTF 2016100.00000.285
660CTF 2016 Quals7.00004.182
36Boston Key Party CTF 201641.000027.292
83SSCTF 2016 Quals610.00001.300
16Internetwache CTF 20162100.00005.313
38Sharif University CTF 20162200.000014.310
32HackIM 20165400.00003.296
33Insomni'hack teaser 2016600.00008.348

Overall rating place: 110 with 105.471 pts in 2015

Country place: 18

PlaceEventCTF pointsRating points
11432C3 CTF450.00004.900
42FAUST CTF 20157933.00002.223
127SECCON 2015 Online CTF1400.00006.879
699447 Security Society CTF 2015937.00006.419
59RuCTFE 2015723517.15006.107
234RCTF 2015 Quals60.00000.438
257HITCON CTF 2015 Quals1.00000.204
115Hackover CTF 2015221.00000.297
78Defcamp CTF Qualification 20151450.00003.242
30Trend Micro CTF Asia Pacific & Japan 2015 Online Qualifier2505.00009.297
147CSAW CTF Qualification Round 20151910.000011.409
43MMA CTF 1st 20151090.00008.447
52ASIS CTF Quals 20151151.00006.581
76VolgaCTF 2015 Quals1475.00006.047
71Teaser CONFidence CTF 2015300.00000.695
76PlaidCTF 2015641.000011.502
4UIUCTF 20151750.00004.821
640CTF 2015 Quals810.00003.572
83Boston Key Party CTF 2015870.00008.822
130Ghost in the Shellcode 2015201.00003.565
66Insomni'hack teaser 20150.00000.000

Overall rating place: 459 with 20.097 pts in 2014

Country place: 58

PlaceEventCTF pointsRating points
22231C3 CTF20.00001.897
11Ghost in the Shellcode Teaser 20151.00002.121
729447 Security Society CTF 2014616.00003.950
89CSCAMP CTF Quals 2014650.00000.841
109Hack.lu CTF 20141350.000011.288

Organized CTF events

NameWeight
b01lers CTF 202544.50
b01lers CTF 202430.80
b01lers CTF36.84
b01lers CTF33.05
Circle City Con CTF 202125.00
b01lers CTF22.99
b01lers CTF bootcamp22.99
b01lers CTF22.46

Team members

Team writeups

EventTaskAction
Google Capture The Flag 2023write-flag-where3 read writeup
Google Capture The Flag 2023write-flag-where2 read writeup
Google Capture The Flag 2023turtle [267]read writeup
Google Capture The Flag 2023LEAST COMMON GENOMINATOR? [50]read writeup
Google Capture The Flag 2023Symatrix [114]read writeup
Google Capture The Flag 2023NPC [122pt]read writeup
Google Capture The Flag 2023write-flag-where [50]read writeup
HackTM CTF Quals 2023d-phi-enc [383]read writeup
UIUCTF 2022odd shell read writeup
DEF CON CTF Qualifier 2021mra [121]read writeup
0x41414141 CTFHash [479]read writeup
UIUCTF 2020Accounting Accidents [150]read writeup
Midnight Sun CTF 2020 QualsAdmpanel [58]read writeup
TAMUctf 2020Gunzipasaservice read writeup
TAMUctf 2020Splatter Calc read writeup
RITSEC CTF 2019999 Bottles [110]read writeup
RITSEC CTF 2019evil accountant [500]read writeup
SwampCTF 2019Last Transmission [50]read writeup
SwampCTF 2019Brokerboard [50]read writeup
SwampCTF 2019NIT [128]read writeup
SwampCTF 2019Heap Golf [136]read writeup
SwampCTF 2019Future Fun [428]read writeup
SwampCTF 2019Brainwallet [495]read writeup
TAMUctf 19Obfuscaxor [490]read writeup
TAMUctf 19KeyGenMe [430]read writeup
CSAW CTF Qualification Round 2018get it? [50]read writeup
CSAW CTF Qualification Round 2018doubletrouble [200]read writeup
Nuit du Hack CTF Quals 2018Kebab STO [350]read writeup
VolgaCTF 2018 QualsNonsense [200]read writeup
HCTF 2017Evr_Q [1000]read writeup
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