Also known as

Academic team JKU - Johannes Kepler University Linz



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SIGFLAG is a CTF team based in Linz, organised by motivated students of JKU Linz.

Participated in CTF events

Overall rating place: 771 with 47.422 pts in 2023

Country place: 8

PlaceEventCTF pointsRating points
636SECCON CTF 2023 Quals50.00001.232
49CCCamp 2023609.00002.791
63Google Capture The Flag 20231006.000014.370
94DEF CON CTF Qualifier 202391.00002.665
175TJCTF 2023179.00001.469
77PlaidCTF 2023370.000012.350
957Cyber Apocalypse 2023: The Cursed Mission5725.00005.770
31pbctf 2023602.00006.775

Overall rating place: 636 with 54.834 pts in 2022

Country place: 5

PlaceEventCTF pointsRating points
3BackdoorCTF 20222399.000021.132
51pingCTF 2022300.00002.193
43HITCON CTF 20221025.000016.487
64MCH2022 CTF1400.00000.000
54Google Capture The Flag 2022962.000014.229
95Insomni'hack teaser 202287.00000.793

Overall rating place: 1421 with 24.491 pts in 2021

Country place: 14

PlaceEventCTF pointsRating points
40Balsn CTF 2021316.00003.382
74TSG CTF 2021495.00004.474
262ångstromCTF 2021895.00006.677
46VolgaCTF 2021 Qualifier1074.00009.957

Overall rating place: 141 with 171.917 pts in 2020

Country place: 3

PlaceEventCTF pointsRating points
30Syskron Security CTF 20203080.000013.024
13VolgaCTF 2020 Final848.804010.961
112Google Capture The Flag 2020419.00006.510
66InCTF 20201604.00005.069
317CyBRICS CTF 2020150.00000.605
16ENOWARS 432978.657110.526
13FAUST CTF 202019905.418930.795
518redpwnCTF 20201927.00002.056
23Really Awesome CTF 202013300.000018.187
64m0leCon CTF 2020 Teaser340.00002.775
102Houseplant CTF 20208678.00006.311
72PlaidCTF 20201001.000016.210
27Byte Bandits CTF 20203018.000016.321
58Midnight Sun CTF 2020 Quals868.00008.426
24VolgaCTF 2020 Qualifier2110.000017.806
22TAMUctf 20209507.00000.000
14ångstromCTF 20204625.000029.661
113zer0pts CTF 2020458.00001.136
56UTCTF 20204771.00004.296
14UCSB iCTF 2020168135.81007.977
38Aero CTF 20201417.00005.292
42Insomni'hack teaser 2020283.00008.027

Overall rating place: 122 with 175.039 pts in 2019

Country place: 3

PlaceEventCTF pointsRating points
76hxp 36C3 CTF254.00002.136
5OverTheWire Advent Bonanza 20199201.000025.454
14TUCTF 201912918.000027.894
27RuCTFE 2019642093.56006.422
39Pwn2Win CTF 2019620.00007.594
7Newbie CTF(N-CTF) 201912856.00000.000
45HITCON CTF 2019 Quals1647.000028.348
9Syskron Security CTF 20196311.000019.844
47PwnThyBytes CTF 201951.00000.709
477Facebook CTF 2019101.00000.160
14FAUST CTF 201912980.439117.446
96PlaidCTF 2019661.000011.831
19UCSB iCTF 201971.750026.513
75Insomni'hack teaser 2019188.00003.692

Overall rating place: 223 with 83.587 pts in 2018

Country place: 3

PlaceEventCTF pointsRating points
20235C3 CTF45.00001.542
197hxp CTF 201850.00000.830
11OverTheWire Advent Bonanza 20183951.000014.662
27RuCTFE 2018315364.370010.486
79Google Capture The Flag 2018 (Quals)527.00006.973
25FAUST CTF 20186990.000011.303
48RCTF 20181800.00004.344
44Blaze CTF 20181680.00005.896
118UCSB iCTF 201849850.000027.551

Overall rating place: 453 with 34.828 pts in 2017

Country place: 4

PlaceEventCTF pointsRating points
8734C3 CTF137.00002.814
21RuCTFE 2017816924.560015.892
135SHA2017 CTF700.00003.695
22FAUST CTF 20179972.54334.086
13UCSB iCTF 2017459794.42758.341

Overall rating place: 3263 with 2.445 pts in 2016

Country place: 8

PlaceEventCTF pointsRating points
47RuCTFE 201660304.00002.445

Team members

Team writeups

Google Capture The Flag 2022Log4J [119]read writeup
Google Capture The Flag 2022MLSteal [118]read writeup
Google Capture The Flag 2022Appnote [50]read writeup
Google Capture The Flag 2022OCR [208]read writeup
VolgaCTF 2021 QualifierQR Codebook [196]read writeup
VolgaCTF 2021 QualifierChosen Ones [266]read writeup
VolgaCTF 2021 QualifierJWT [132]read writeup
m0leCon CTF 2020 TeaserAndry [111]read writeup
Houseplant CTF 2020RTCP trivia [1882]read writeup
PlaidCTF 2020sandybox [200]read writeup
PlaidCTF [500]read writeup
Byte Bandits CTF 2020 Extra Careful Bank [388]read writeup
Byte Bandits CTF 2020string.equals(integer) [475]read writeup
Byte Bandits CTF 2020Meet me there [232]read writeup
Byte Bandits CTF 2020 RSyay! [396]read writeup
Byte Bandits CTF 2020Notes App [488]read writeup
TAMUctf 2020LeJIT [458]read writeup
VolgaCTF 2020 QualifierCurved [100]read writeup
VolgaCTF 2020 QualifierDissolved [100]read writeup
ångstromCTF 2020Woooosh [130]read writeup
ångstromCTF 2020Noisy [240]read writeup
ångstromCTF 2020msd [140]read writeup
ångstromCTF 2020Just Rust [120]read writeup
ångstromCTF 2020CaaSio [220]read writeup
Aero CTF 2020Very funny curves [449]read writeup
Aero CTF 2020Funny Images [484]read writeup
Aero CTF 2020Funny curves [384]read writeup
OverTheWire Advent Bonanza 2019Lost in Maze [537]read writeup
Pwn2Win CTF 2019Baby Recruiter [267]read writeup
Newbie CTF(N-CTF) 2019Foxy Fox [994]read writeup
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