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TW Balsn

Website: https://balsn.tw/

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Balsn is a CTF team from Network Security Lab of National Taiwan University

Participated in CTF events

Overall rating place: 151 with 228.776 pts in 2024

Country place: 2

PlaceEventCTF pointsRating points
45BlockCTF 2024 (Formerly SquareCTF)801.000012.590
447DefCamp Capture the Flag (D-CTF) 2024 Quals30.00000.367
27HITCON CTF 2024 Quals1601.000022.612
16justCTF 2024 teaser2544.000045.672
162ångstromCTF 2024720.000012.372
193NahamCon CTF 20243019.00006.293
32Midnight Sun CTF 2024 Quals1790.000013.681
40PlaidCTF 2024551.000016.419
31LINE CTF 2024894.000013.720
31DiceCTF 2024 Quals2038.000020.910
10Real World CTF 6th1295.000064.509

Overall rating place: 25 with 545.602 pts in 2023

Country place: 1

PlaceEventCTF pointsRating points
17ASIS CTF Finals 20231402.00000.000
4SECCON CTF 2023 International Finals2516.000025.392
110CTF/TCTF 20233971.00000.000
17Square CTF 20231325.000015.548
2CakeCTF 20233497.00000.000
13LakeCTF Quals 232539.000019.279
13N1CTF 20231471.000033.182
9Hack.lu CTF 20232380.000053.808
103ASIS CTF Quals 2023129.00003.264
12Bauhinia CTF 20231650.00009.826
10corCTF 20233005.000017.457
1zer0pts CTF 20234223.0000105.240
61Crypto CTF 2023417.00009.828
273UIUCTF 2023319.00003.347
10Google Capture The Flag 20234953.000072.930
25Codegate CTF 2023 Preliminary686.00003.365
50justCTF 2023794.00007.092
26hxp CTF 20221124.000026.228
21pbctf 2023883.00009.948
14bi0sCTF 20223199.000016.924
11Real World CTF 5th1703.000033.908

Overall rating place: 11 with 730.150 pts in 2022

Country place: 1

PlaceEventCTF pointsRating points
4ASIS CTF Finals 20222068.000083.793
37RCTF 20223002.000015.138
6HITCON CTF 20223952.000071.267
16SECCON CTF 2022 Quals2503.000061.823
5N1CTF 20226109.000046.566
13Hack.lu CTF 20223241.000046.853
8ASIS CTF Quals 20222042.000058.786
1CyberSecurityRumble CTF9232.0000124.000
70CTF/TCTF 20223995.000061.197
1CakeCTF 20223957.00000.000
12CTFZone 2022116.450069.024
13Paradigm CTF 20222791.500011.767
2Aero CTF 2022760.000039.921
39Crypto CTF 2022927.000011.375
23Google Capture The Flag 20222660.000038.588
20justCTF 20221823.000011.599
44ångstromCTF 20222910.000035.597
41PlaidCTF 2022556.000019.639
11LINE CTF 20222277.000013.256
32zer0pts CTF 20221020.00007.513
2TSJ CTF 20223469.000036.323
12DiceCTF 20222609.000012.224
10Real World CTF 4th1077.000019.038

Overall rating place: 4 with 1010.773 pts in 2021

Country place: 1

PlaceEventCTF pointsRating points
4hxp CTF 20216319.000089.254
3SECCON CTF 20215833.0000117.225
2HITCON CTF 20215818.0000123.598
1Dragon CTF 20213830.0000198.660
10N1CTF 20211478.000013.377
65pbctf 2021472.00002.601
29TSG CTF 2021992.00009.225
30CTF/TCTF 2021 Finals6085.0000118.361
12Trend Micro CTF 2021 - Raimund Genes Cup - Online Qualifier1000.00005.337
261RCTF 202140.00000.412
10ALLES! CTF 20212285.000023.073
28InCTF 20214066.000014.754
3CyBRICS CTF 20214179.000041.717
5Google Capture The Flag 20215716.0000106.976
130CTF/TCTF 2021 Quals 4203.000046.270
37Pwn2Win CTF 2021844.000012.578
18OMH 2021 CTF1108.00009.938
4PlaidCTF 20214281.000094.712
65Midnight Sun CTF 2021 Quals619.00006.792
62ångstromCTF 20212465.000018.649
10VolgaCTF 2021 Qualifier2992.000029.030
11LINE CTF 20211666.00007.676
13zer0pts CTF 20212505.000013.696
392Tenable CTF 20211175.00003.922
32DiceCTF 20211165.00006.857
48justCTF [*] 2020768.00005.198
42BambooFox CTF 2021997.00005.226
4*CTF 20217523.000022.454
4Real World CTF 3rd2054.000032.364

Overall rating place: 7 with 752.090 pts in 2020

Country place: 1

PlaceEventCTF pointsRating points
26hxp CTF 20201754.000023.996
47pbctf 2020410.00002.350
3HITCON CTF 20203819.0000106.927
3Hack The Vote 20201211.000013.820
129Hack.lu CTF 2020470.00008.562
78N1CTF 2020347.00001.597
62ISITDTU CTF 2020 Quals400.00001.424
36SECCON 2020 Online CTF944.000014.898
12Trend Micro CTF 2020 - Raimund Genes Cup - Online Qualifier1500.000011.552
20CTF/TCTF 2020 Finals857.1000135.796
4TokyoWesterns CTF 6th 20204398.0000111.343
22VolgaCTF 2020 Final368.39405.258
253CSAW CTF Qualification Round 2020455.00006.327
1 CONFidence CTF 2020 Finals4280.000050.000
3Codegate CTF 2020 Finals6763.00000.000
6Google Capture The Flag 20203873.000066.411
284CyBRICS CTF 2020200.00000.790
51TSG CTF 2020325.00002.062
22Geekpwn x Tencent YDLAB Cloud Range Challenge 2020 Quals1286.00006.384
27SCTF-XCTF 20202970.00000.000
52ASIS CTF Quals 2020555.00008.695
50CTF/TCTF 2020 Quals 7195.000097.951
9WeCTF 20204032.000012.877
4NahamCon CTF6515.000027.423
62020 Defenit CTF7891.000014.498
54RCTF 2020860.00004.299
10Pwn2Win CTF 20202162.000034.619
8S㎩mAndFlags Uけimate w呎は屸de C㏊mᒆonship Teaser ꕫꕫ - ㎩㏚i㎄ Edition3262.000015.695
36De1CTF 20202358.00005.644
16PlaidCTF 20203701.000060.973
5Byte Bandits CTF 20206218.000038.070
24Midnight Sun CTF 2020 Quals1656.000016.399
228AUCTF 20205720.00003.285
43VolgaCTF 2020 Qualifier1260.000010.579
12Securinets CTF Quals 202013097.000023.154
10CONFidence CTF 2020 Teaser1181.000018.955
6zer0pts CTF 202010244.000024.650
746UTCTF 2020101.00000.115
17Pragyan CTF 20201160.000010.347
2Codegate CTF 2020 Preliminary7678.000023.207
21Insomni'hack teaser 2020377.000011.523

Overall rating place: 2 with 1027.851 pts in 2019

Country place: 1

PlaceEventCTF pointsRating points
11hxp 36C3 CTF3328.000022.857
9justCTF 20193081.000015.021
7HITCON CTF 2019 Final7954.980019.801
4Real World CTF 2019 Finals857.000015.892
16CTFZone 2019 Quals2090.000013.161
3Trend Micro CTF 2019 - Raimund Genes Cup - The Final1662.000028.987
123RuCTFE 20195.37000.611
6ASIS CTF Finals 20193721.000075.691
9Dragon CTF 2019980.000052.303
2Pwn2Win CTF 20193737.000060.626
7Google Capture The Flag 2019 (Finals)1350.000020.196
4CODE BLUE CTF 2019848.000011.432
3BackdoorCTF 20193080.000049.953
10TastelessCTF 20191607.000010.446
4Hack.lu CTF 20196777.000071.345
7SECCON 2019 Online CTF5986.000042.418
2HITCON CTF 2019 Quals5731.0000137.926
2BSides Delhi CTF 201915519.000031.439
4PwnThyBytes CTF 20195743.000026.155
3Teaser Dragon CTF 20192224.000033.557
8Real World CTF 2019 Quals1665.000018.353
28CSAW CTF Qualification Round 20193001.000024.994
20DefCamp CTF Qualification 20192155.000012.445
9Trend Micro CTF 2019 - Raimund Genes Cup - Online Qualifier2400.00006.006
73Affinity CTF 2019 - Quals651.00002.222
2N1CTF 20195589.000031.748
1TokyoWesterns CTF 5th 20193690.0000194.160
3h4ckc0n 20196582.000025.756
3De1CTF 20198852.000027.239
35CyBRICS CTF Quals 2019737.00005.708
7WCTF 2019 ONLINE600.00000.849
12ISITDTU CTF 2019 Quals6875.000012.571
8Google Capture The Flag 2019 (Quals)3979.000094.374
20CTF/TCTF 2019 Finals5091.0000148.931
2Facebook CTF 201921511.000035.341
1Security Fest 20198326.000081.640
3RCTF 20198359.000038.147
3*CTF 201911258.000031.542
6ASIS CTF Quals 20193450.000047.635
4PlaidCTF 20194707.0000101.080
9AceBear Security Contest 20193166.00009.924
31SwampCTF 20192275.00006.669
10Midnight Sun CTF 2019 Quals5043.000018.911
9VolgaCTF 2019 Qualifier2325.000022.384
120CTF/TCTF 2019 Quals3769.000062.078
2CONFidence CTF 2019 Teaser2365.000034.166
1Pragyan CTF 20193275.000041.380
41TAMUctf 1915795.000026.883
6STEM CTF: Cyber Challenge 20192450.000023.254
27Insomni'hack teaser 2019501.00009.900

Overall rating place: 24 with 359.248 pts in 2018

Country place: 3

PlaceEventCTF pointsRating points
10SECCON 2018 Final International competition5334.000012.336
8Trend Micro CTF 2018 - Raimund Genes Cup - The Final2390.000010.362
47X-MAS CTF 20183506.00006.915
7hxp CTF 20181872.000029.098
1Pwn2Win CTF 20184462.000058.620
32BCTF 20181074.00002.813
5ASIS CTF Finals 20183421.000041.945
17DefCamp CTF Finals 20181154.00003.433
11SECCON 2018 Online CTF3852.000026.507
22Hack.lu CTF 20182018.000030.758
14InCTF 20183741.00006.171
2Hackover CTF 20185702.000035.940
12Teaser Dragon CTF 20181472.000018.461
7DefCamp CTF Qualification 20182065.000016.576
6Trend Micro CTF 2018 - Raimund Genes Cup - Online Qualifier4300.000015.787
234CSAW CTF Qualification Round 2018826.00004.627
15HackIT CTF 20183969.00008.409
228IceCTF 20181685.00007.618
53CTFZone 2018 Quals369.00002.146
32Google Capture The Flag 2018 (Quals)1466.000019.136
35Security Fest CTF309.00004.760
17RCTF 20185128.000012.362
12PlaidCTF 20182151.000044.776
7ASIS CTF Quals 20183021.000036.206
7*CTF 20185938.000016.338
2HITB-XCTF GSEC CTF 2018 Quals9582.000025.637
3UIUCTF 20182502.000021.801
6610CTF/TCTF 2018 Quals16.00000.187
18Nuit du Hack CTF Quals 20182451.000029.760
111Securinets CTF Quals 2018450.00001.649
6VolgaCTF 2018 Quals2610.000023.935
10BackdoorCTF 20181800.000021.732
51ångstromCTF 20182260.000013.973
19N1CTF 20182491.00007.013
1Pragyan CTF 20182800.000013.080
12SECCON 2017 Final International competition1435.00008.679

Overall rating place: 63 with 175.189 pts in 2017

Country place: 3

PlaceEventCTF pointsRating points
3634C3 CTF497.00008.977
12SECCON 2017 Online CTF5200.000026.875
10HITCON CTF 2017 Final15225.890016.911
9hxp CTF 20171439.000012.255
9DefCamp CTF Finals 20172615.000012.285
21HITCON CTF 2017 Quals2785.000037.783
6DefCamp CTF Qualification 20171983.000011.239
158CSAW CTF Qualification Round 20171351.00005.330
29Tokyo Westerns CTF 3rd 20171058.000014.226
27HackIT CTF 20171070.00005.416
15CTFZone 20172061.00005.220
111PoliCTF 2017237.00001.261
22SECUINSIDE CTF Quals 2017956.00003.593
22Trend Micro CTF 2017 - Raimund Genes Cup - Online Qualifier2200.000010.757
123Google Capture The Flag 2017 (Quals)340.00001.519
213PlaidCTF 2017201.00003.487
38BCTF 20171345.00003.126
79VolgaCTF 2017 Quals950.00005.337
420CTF 2017 Quals1099.00008.778
180Pragyan CTF 2017310.00000.964
46Boston Key Party CTF 20171151.000015.998
22Codegate 2017 prequals1680.000016.215
108AlexCTF1640.000011.402

Overall rating place: 49 with 273.185 pts in 2016

Country place: 4

PlaceEventCTF pointsRating points
2533C3 CTF2100.000030.867
148The 318br, DESEC, and SucuriHC Capture The Flag (3DSCTF)600.00001.671
30SharifCTF 72430.000015.733
43SECCON 2016 Online CTF1800.00009.005
31Juniors CTF 20164000.00000.000
12RC3 CTF 20165140.000014.765
4Qiwi-Infosec CTF-20166600.000016.963
9DefCamp CTF Finals 20162957.000016.519
27Hack The Vote 20161951.00008.835
19EKOPARTY CTF 20162350.000022.233
49Hack.lu CTF 2016801.000020.451
14HITCON CTF 2016 Quals2850.000038.470
10TUM CTF 20162523.000014.079
15DefCamp CTF Qualification 20161400.00007.259
42CSAW CTF Qualification Round 20162826.000013.843
29WhiteHat Contest 12500.00002.730
76Tokyo Westerns/MMA CTF 2nd 2016790.00007.156
222h4ckc0n 2016501.00002.493
16IceCTF 20163516.00000.000
41Trend Micro CTF 2016 Online Qualifier1000.00006.339
132ASIS CTF Quals 2016110.00001.480
46Google Capture The Flag 20161755.00008.663
5660CTF 2016 Quals1.00000.581
118Boston Key Party CTF 201613.00008.633
62Internetwache CTF 20161820.00004.414

Overall rating place: 350 with 27.800 pts in 2015

Country place: 10

PlaceEventCTF pointsRating points
2389447 Security Society CTF 2015162.00001.161
77RCTF 2015 Quals560.00003.415
56HITCON CTF 2015 Quals401.00004.871
36Trend Micro CTF Asia Pacific & Japan 2015 Online Qualifier2205.00008.152
174CSAW CTF Qualification Round 20151710.000010.201

Organized CTF events

NameWeight
Balsn CTF 202379.09
Balsn CTF 202253.42
Balsn CTF 202137.00
Balsn CTF 202025.00
Balsn CTF 201925.00

Team members

Team writeups

EventTaskAction
TokyoWesterns CTF 6th 2020Blind Shot [398]read writeup
CONFidence CTF 2020 FinalsYet Another Yet Another Cat Challenge read writeup
CONFidence CTF 2020 FinalsYet Another Cat Challenge read writeup
CONFidence CTF 2020 FinalsPassword Manager read writeup
CONFidence CTF 2020 FinalsTeam Trees [395]read writeup
CONFidence CTF 2020 FinalsFibHash [421]read writeup
Google Capture The Flag 2020quantum pyramids [373]read writeup
Google Capture The Flag 2020oracle [340]read writeup
0CTF/TCTF 2020 Quals eeeeeemoji read writeup
0CTF/TCTF 2020 Quals emmm read writeup
0CTF/TCTF 2020 Quals flash-1 read writeup
0CTF/TCTF 2020 Quals babymips read writeup
0CTF/TCTF 2020 Quals Duet read writeup
0CTF/TCTF 2020 Quals Chromium SBX read writeup
PlaidCTF 2020Catalog [500]read writeup
PlaidCTF 2020JSON Bourne [200]read writeup
PlaidCTF 2020Contrived Web Problem [350]read writeup
Midnight Sun CTF 2020 Qualshackingforso read writeup
Midnight Sun CTF 2020 QualsShithappens [155]read writeup
CONFidence CTF 2020 TeaserAngry Defender [448]read writeup
CONFidence CTF 2020 TeaserTemple JS [162]read writeup
CONFidence CTF 2020 TeaserCat web [157]read writeup
zer0pts CTF 2020grimoire [671]read writeup
zer0pts CTF 2020protrude [525]read writeup
zer0pts CTF 2020MusicBlog [653]read writeup
Codegate CTF 2020 Preliminarymalicious [702]read writeup
Codegate CTF 2020 PreliminaryORM-APP [810]read writeup
Codegate CTF 2020 Preliminaryverifier [702]read writeup
Codegate CTF 2020 PreliminaryPolynomials [810]read writeup
Codegate CTF 2020 PreliminaryMUNCH [750]read writeup
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