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DE FluxFingers

Also known as
  • FlexSurfing
  • Flux Fingers
  • FluxFngers
  • chunithm > mania

Academic team Ruhr-Universität Bochum

Website: https://fluxfingers.net/

Twitter: https://twitter.com/fluxfingers

Sign in to join the team.



The FluxFingers team represents the Ruhr University Bochum in CTF contests since 2007. In the past years it also organized the famous Hack.lu CTFs.

Participated in CTF events

Overall rating place: 18 with 664.545 pts in 2025

Country place: 1

PlaceEventCTF pointsRating points
13Ctrl+Space CTF Quals1236.00009.987
4MaltaCTF 2025 Finals2065.00000.000
1idekCTF 20259020.0000104.120
3ENOWARS 932857.4044104.652
12MaltaCTF 2025 Quals2646.000013.972
159GPN CTF 2025253.00002.901
4smileyCTF 20255068.000041.877
25bi0sCTF 2025 4183.000023.137
9SAS CTF 2025 Quals4283.000010.848
35Midnight Sun CTF 2025 Quals792.000020.482
11DamCTF 20257418.000062.426
8LakeCTF Finals 24-251716.000024.212
26UMDCTF 20258260.000037.845
12DiceCTF 2025 Quals2532.000046.760
8KalmarCTF 20254829.000022.925
154LA CTF 20253681.00008.054
722Nullcon Goa HackIM 2025 CTF1.00000.049
6x3CTF 2025 (feat. mvm)5216.000023.475

Overall rating place: 11 with 817.058 pts in 2024

Country place: 1

PlaceEventCTF pointsRating points
5hxp 38C3 CTF5514.000071.102
90CTF 20242712.000037.645
15TSG CTF 20242582.000014.805
204HTB University CTF 2024: Binary Badlands10450.00000.000
5LakeCTF Quals 24-254279.000037.149
43Platypwn 2024700.00003.108
8saarCTF 202432916.990551.902
26SECCON CTF 13 Quals1582.000041.166
941337UP LIVE CTF1953.00005.747
3Bambi CTF #1130773.0874105.573
51HeroCTF v62563.000012.494
6Haus der Flaggen/Flag Heist8250.000019.922
1justCTF 2024 finals4293.000050.000
23SekaiCTF 20241706.000012.659
26idekCTF 20242242.000016.930
20Google Capture The Flag 20242380.000035.854
2justCTF 2024 teaser4765.0000115.097
10ångstromCTF 20243400.000063.529
10CyberSecurityRumble Quals3979.000064.048
3LakeCTF Finals 232817.000019.210
4UMDCTF 202412923.000054.642
38Insomni'hack 2024485.00005.188
17Midnight Sun CTF 2024 Quals3210.000024.633
10KalmarCTF 20245194.000015.182
54DiceCTF 2024 Quals1134.000011.666
24Insomni'hack teaser 2024846.000012.834

Overall rating place: 16 with 628.729 pts in 2023

Country place: 2

PlaceEventCTF pointsRating points
937C3 Potluck CTF2102.000011.303
353HTB University CTF 2023: Brains & Bytes300.00000.942
29saarCTF 202342788.149340.228
11LakeCTF Quals 232551.000019.697
8Platypwn 20234552.00008.473
2THE HAXORCIST - A HALLOWEEN CTF7100.000031.709
6CyberSecurityRumble CTF1837.000031.876
20FAUST CTF 202330139.396738.438
66SekaiCTF 20231468.00003.880
12ENOWARS 735168.190059.654
7CyberSecurityRumble Quals4896.000020.277
225Google Capture The Flag 2023191.00002.871
7p4ctf 2023 finals2427.000013.982
13justCTF 20232320.000021.701
23Grey Cat The Flag 2023 Qualifiers2816.000010.542
7p4ctf 2023 teaser2088.000042.004
16m0leCon CTF 2023 Teaser898.000020.170
1San Diego CTF 20233850.000067.760
7UMDCTF 202315774.000035.322
8ångstromCTF 20233050.000092.278
13idekCTF 2022*9099.000012.096

Overall rating place: 22 with 512.491 pts in 2022

Country place: 3

PlaceEventCTF pointsRating points
62X-MAS CTF 20221161.00002.966
24HTB University CTF 2022 : Supernatural Hacks4425.000015.029
2Hacker Things CTF 20227250.000029.103
6Bambi CTF #728280.859823.738
14CyberSecurityRumble CTF3684.000029.169
41LakeCTF Qualifications311.00001.892
257CSAW CTF Qualification Round 2022556.00001.551
108TFC CTF 20221638.00004.288
8ENOWARS 636388.470655.535
5FAUST CTF 202238857.632092.705
18Google Capture The Flag 20223376.000049.012
11justCTF 20223406.000021.581
18DiceCTF 20222014.00009.219
19Insomni'hack teaser 2022794.00006.312

Overall rating place: 47 with 310.167 pts in 2021

Country place: 5

PlaceEventCTF pointsRating points
11CyberSecurityRumble CTF3481.000022.836
40Google Capture The Flag 20211296.000022.236
2saarCTF 202153960.972829.015
1UMassCTF 20217827.000047.120

Overall rating place: 64 with 287.160 pts in 2020

Country place: 6

PlaceEventCTF pointsRating points
298hxp CTF 202019.00000.536
87Dragon CTF 2020239.00005.894
364Balsn CTF 2020110.00000.399
6CyberSecurityRumble CTF6814.000021.843
74ALLES! CTF 2020536.00002.955
45Google Capture The Flag 20201191.000018.272
380CTF/TCTF 2020 Quals 1094.000014.486
211Midnight Sun CTF 2020 Quals192.00001.898
20saarCTF 202030317.904310.940
22UCSB iCTF 2020132810.06006.084
7Insomni'hack teaser 2020895.000028.909

Overall rating place: 39 with 334.866 pts in 2019

Country place: 4

PlaceEventCTF pointsRating points
28hxp 36C3 CTF1748.000011.247
228X-MAS CTF 2019608.00000.825
54RuCTFE 2019222598.49002.654
12PwnThyBytes CTF 20191453.00007.119
15Teaser Dragon CTF 20191280.000014.797
3ISITDTU CTF 2019 Finals5705.000031.401
8CInsects CTF 20198540.000018.620
4ENOWARS 314110.553123.904
6ISITDTU CTF 2019 Quals10591.000020.261
33Google Capture The Flag 2019 (Quals)1765.000039.440
46Facebook CTF 20194917.00005.831
28FAUST CTF 201910387.330413.264
84INS'hAck 2019591.00003.734
410ASIS CTF Quals 201911.00000.268
8Insomni'hack teaser 20191153.000024.433

Overall rating place: 30 with 330.964 pts in 2018

Country place: 2

PlaceEventCTF pointsRating points
4535C3 CTF521.000014.347
128RITSEC CTF 20181511.00004.320
38RuCTFE 2018219640.49007.341
396Square CTF 20185528.00001.510
11CSAW CTF Final Round 20182726.000020.128
1P.W.N. CTF5366.000049.660
54BSides Delhi CTF 2018576.00003.754
7CSAW CTF Qualification Round 20184651.000029.647
29CTFZone 2018 Quals832.00004.646
35Meepwn CTF Quals 20181920.00005.340
117Google Capture The Flag 2018 (Quals)302.00004.082
5FAUST CTF 201811001.000021.215
7INS'hAck 20183049.000015.188
48SwampCTF 20183159.00007.451
40EvlzCTF525.00003.853
115SharifCTF 8450.00005.053
41AceBear Security Contest 20181219.00003.225
8Insomni'hack teaser 20181166.000020.487

Overall rating place: 39 with 225.122 pts in 2017

Country place: 3

PlaceEventCTF pointsRating points
4734C3 CTF404.00007.182
36SECCON 2017 Online CTF3300.000016.302
35RuCTFE 2017272858.83006.272
34hxp CTF 2017684.00005.156
56School CTF 20171000.00003.919
57HITCON CTF 2017 Quals1086.000014.662
208CSAW CTF Qualification Round 2017976.00003.856
29SEC-T CTF1360.000010.340
57ASIS CTF Finals 2017526.00004.797
200SHA2017 CTF400.00002.130
420bugs_bunny ctf 2k175.00000.035
37CTFZone 2017460.00001.456
18MeePwn CTF 1st 20171550.00005.825
12PoliCTF 20172299.000012.140
292Google Capture The Flag 2017 (Quals)105.00000.489
38Security Fest 2017760.00006.174
43FAUST CTF 20174891.35662.014
78DEF CON CTF Qualifier 2017301.00008.232
52PlaidCTF 2017912.000015.639
70BCTF 2017599.00001.431
105TAMUctf 20171330.00006.529
49FIT-HACK CTF 20172600.000012.363
49ASIS CTF Quals 20171046.00008.074
13INS'hAck 20171875.00009.336
55Teaser CONFidence CTF 2017201.00000.985
2890CTF 2017 Quals45.00000.461
602EasyCTF 2017460.00000.000
136UCSB iCTF 201710700.91290.389
94BSides San Francisco CTF1131.00004.206
93nullcon HackIM 1150.00001.081
29BITSCTF 2017410.00008.258
110AlexCTF1590.000011.057
7Insomni'hack teaser 20171500.000013.202

Overall rating place: 44 with 299.936 pts in 2016

Country place: 3

PlaceEventCTF pointsRating points
17133C3 CTF225.00003.445
228The 318br, DESEC, and SucuriHC Capture The Flag (3DSCTF)200.00000.607
16SharifCTF 73647.000024.155
48SECCON 2016 Online CTF1600.00008.010
32RuCTFE 2016193415.00005.025
8VolgaCTF 2016 Finals0.48206.260
782Tokyo Westerns/MMA CTF 2nd 201610.00000.152
84CyberSecurityRumble CTF 201651.00000.611
322h4ckc0n 2016500.00002.464
609IceCTF 2016541.00000.000
96Trend Micro CTF 2016 Online Qualifier500.00003.132
26Security Fest 2016710.00005.193
3TU CTF 20164685.000025.667
51ASIS CTF Quals 2016530.00006.492
76Google Capture The Flag 20161210.00005.933
21Blaze CTF 2016840.00006.573
30PlaidCTF 20161727.000037.144
94VolgaCTF 2016 Quals700.00003.573
72BCTF 2016500.00003.622
250CTF 2016 Quals21.000012.324
144Boston Key Party CTF 201611.00007.292
199SSCTF 2016 Quals200.00000.436
83Internetwache CTF 20161610.00003.894
205Sharif University CTF 2016350.00002.301
293HackIM 20161400.00000.831
11Insomni'hack teaser 20161000.000014.721

Overall rating place: 21 with 473.424 pts in 2015

Country place: 2

PlaceEventCTF pointsRating points
4332C3 CTF1300.000014.009
2FAUST CTF 201539469.000014.873
176SECCON 2015 Online CTF1000.00004.915
139447 Security Society CTF 20152567.000018.703
16RuCTFE 20153369975.750027.459
3Defcamp CTF Finals 20153111.000019.971
1Hack Dat Kiwi 20153420.000040.000
76RCTF 2015 Quals560.00003.419
17TUM CTF Teaser166.00003.591
91EKOPARTY CTF 2015685.00006.644
12Defcamp CTF Qualification 20153906.00009.223
12CSAW CTF Qualification Round 20156510.000041.293
313MMA CTF 1st 2015140.00001.093
13Camp CTF 20152525.00005.625
13PoliCTF 20152950.000020.205
140DEF CON CTF Qualifier 20153.00005.380
333ASIS CTF Quals 20151.00000.095
48VolgaCTF 2015 Quals2150.00008.848
27Teaser CONFidence CTF 20151000.00002.269
31PlaidCTF 20151521.000027.370
5UCSB iCTF 201463.584637.195
1600CTF 2015 Quals160.00000.801
396B-Sides Vancouver 201510.00000.031
199Boston Key Party CTF 2015320.00003.281
47Ghost in the Shellcode 2015951.000015.659
111HackIM 20151300.00001.473

Overall rating place: 25 with 416.315 pts in 2014

Country place: 2

PlaceEventCTF pointsRating points
3631C3 CTF160.000014.600
5RuCTFE 2014648123.790042.498
145SECCON CTF 2014 Online Qualifications1200.00004.389
49447 Security Society CTF 20144180.000031.477
1CSCAMP CTF Quals 20144140.000010.000
162ASIS CTF Finals 2014175.00001.399
502Sharif University CTF 20140.00000.000
8CSAW CTF Qualification Round 20145960.000045.000
73HITCON CTF 2014708.00004.457
27SECUINSIDE CTF Quals 2014800.000031.852
59DEF CON CTF Qualifier 20149.000018.056
16ASIS CTF Quals 20141016.00006.708
38PlaidCTF 20141617.000017.935
46RuCTF Quals 20142610.000018.308
131Codegate CTF Preliminary 2014500.00006.886
187Olympic CTF Sochi 201420.00000.549
188PHD CTF Quals 20142600.00002.483
43HackIM 20142200.00003.053
44Ghost in the Shellcode 2014826.000016.664

Overall rating place: 13 with 538.006 pts in 2013

Country place: 1

PlaceEventCTF pointsRating points
3630C3 CTF750.000012.340
2RuCTF 2013313019.647076.232
94UCSB iCTF 20133506.000037.172
15CSCAMP CTF Quals 20133625.00004.299
2rwthCTF 201380555.000071.308
14CSAW CTF Qualification Round 20137200.000037.979
176EBCTF 2013100.00001.920
109DEF CON CTF Qualifier 201323.000028.426
72EBCTF Teaser 2013200.00002.639
18SECUINSIDE CTF Quals 20132751.000029.989
117BaltCTF Quals 201373.00000.422
30PlaidCTF 20131274.000030.491
10UCSB iCTF 20122.450033.797
5ForbiddenBITS CTF 20133755.000041.341
48Nuit du Hack CTF Quals 2013501.00008.846
29RuCTF Quals 20131200.000011.894
47Codegate CTF Preliminary 20132200.000026.470
21HackIM 20135400.000012.442

Overall rating place: 21 with 338.667 pts in 2012

Country place: 1

PlaceEventCTF pointsRating points
5429c3 CTF400.00004.921
3rwthCTF 20125.200063.333
15RuCTF 201249.000038.967
29PoliCTF 2012718.00006.985
26CSAW CTF Qualification Round 20127700.000037.774
7SECUINSIDE CTF Finals 2012420.000012.431
9SECUINSIDE CTF Quals 20122940.000035.218
8PHD CTF Finals 2012602.000025.154
6PlaidCTF 20123842.000076.702
22Nuit du Hack CTF Quals 201215500.000037.183

Overall rating place: 4 with 390.230 pts in 2011

PlaceEventCTF pointsRating points
3UCSB iCTF 20111105.00000.000
2RuCTF 201188.00000.000
4rwthCTF 2011137179.00000.000
88CSAW CTF Qualification Round 20113600.00000.000
140DEF CON CTF Qualifier 2011400.00000.000
1dCTF 20115400.00000.000
17PlaidCTF 20113654.00000.000
PlaceEventCTF pointsRating points
2RuCTF 20100.00000.000
22UCSB iCTF 20103000.00000.000
PlaceEventCTF pointsRating points
10UCSB iCTF 20090.00000.000
PlaceEventCTF pointsRating points
25UCSB iCTF 200710175.00000.000

Organized CTF events

NameWeight
Hack.lu CTF 202598.02
Hack.lu CTF 2024100.00
Hack.lu CTF 202394.73
Hack.lu CTF 202293.70
Hack.lu CTF 202194.48
Hack.lu CTF 202087.94
Hack.lu CTF 201968.75
Hack.lu CTF 201872.75
Hack.lu CTF 201755.04
Hack.lu CTF 201655.04
Hack.lu CTF 201570.00
Hack.lu CTF 201470.00
Hack.lu CTF 201370.00
Hack.lu CTF 201270.00
Mozilla CTF 201270.00
Hack.lu CTF 201180.00

Team members

Team writeups

EventTaskAction
Hack.lu CTF 2024Ancient Monkey read writeup
Hack.lu CTF 2024Bench Press read writeup
justCTF 2024 teaserjust TV [326]read writeup
justCTF 2024 teaserInterlock [355]read writeup
justCTF 2024 teaserleaving soon [406]read writeup
justCTF 2024 teaserWild West [355]read writeup
justCTF 2024 teaserBudget SoC read writeup
justCTF 2024 teaserBaby SoC [256]read writeup
justCTF 2024 teaserHaSSHing [174]read writeup
justCTF 2024 teaserWorld of Ottercraft [271]read writeup
justCTF 2024 teaserDark BrOTTERhood [275]read writeup
justCTF 2024 teaserThe Otter Scrolls [246]read writeup
TFC CTF 2022One read writeup
justCTF 2024 teaserCasino [394]read writeup
FAUST CTF 2022AdminCrashBoard read writeup
FAUST CTF 2022compiler60 read writeup
FAUST CTF 2022Docs Notebook read writeup
Hack.lu CTF 2019Save Our Planet [500]read writeup
Hack.lu CTF 2019Open Pit [500]read writeup
Hack.lu CTF 2019Chat [381]read writeup
Facebook CTF 2019secret note keeper [676]read writeup
PlaidCTF 2019Potent Quotables [300]read writeup
Insomni'hack teaser 2019Droops [378]read writeup
Codegate CTF 2019 PreliminaryPyProt3ct [27.8]read writeup
Hack.lu CTF 2018LFSR StreamCipher [500]read writeup
P.W.N. CTFH!pster Startup [216]read writeup
P.W.N. CTFConverter [376]read writeup
Hack.lu CTF 2018Petite Prison [500]read writeup
CTFZone 2018 QualsPiggy Bank [105]read writeup
SECCON 2017 Online CTFautomatic_door [500]read writeup
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