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VN efiens

Academic team VNU-HCM University of Technology

Website: https://facebook.com/efiens.team/

Website: https://blog.efiens.com/

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Cyber Security Club of VNU-HCM University of Technology

Participated in CTF events

Overall rating place: 717 with 49.907 pts in 2022

Country place: 29

PlaceEventCTF pointsRating points
38ångstromCTF 20223011.000037.013
685CrewCTF 202210.00000.039
840DiceCTF 20221.00000.033
11TetCTF 20223142.000012.822

Overall rating place: 133 with 173.965 pts in 2021

Country place: 4

PlaceEventCTF pointsRating points
6ISITDTU CTF 2021 Finals1219.00009.320
220MetaCTF CyberGames 20214825.00007.820
8ISITDTU CTF 2021 Quals4394.000017.658
23HITB PRO CTF 20213.03000.000
62N1CTF 2021216.00002.036
66DUNGEON - BSides Ahmedabad CTF 2021281.00002.121
146pbctf 2021156.00000.904
27TSG CTF 2021995.00009.338
31ALLES! CTF 20211222.000011.568
7HITB SECCONF EDU CTF 2021981785.170010.110
246UIUCTF 2021352.00000.857
71Google Capture The Flag 2021603.000010.589
19redpwnCTF 20213400.000013.566
660CTF/TCTF 2021 Quals 446.00005.516
80Hack-A-Sat 2 Qualifiers217.00002.249
28HSCTF 813716.000019.563
34Zh3r0 CTF V22772.00004.135
24Pwn2Win CTF 20211193.000018.068
27OMH 2021 CTF734.00006.592
23DawgCTF 20213605.000012.830
183DEF CON CTF Qualifier 2021101.00002.788
41TAMUctf 20211900.00007.892
57PlaidCTF 2021651.000012.363
658RITSEC CTF 202150.00000.183
55ångstromCTF 20212635.000019.979
24UTCTF 202122213.000022.926
25zer0pts CTF 20211478.00007.948
21Aero CTF 2021949.00009.511
19Union CTF 20211737.00007.872
55DiceCTF 2021845.00004.862
18justCTF [*] 20201552.000010.838
170x41414141 CTF13343.00000.000
243BambooFox CTF 20211.00000.104
3TetCTF 20216474.000025.446

Overall rating place: 133 with 177.058 pts in 2020

Country place: 1

PlaceEventCTF pointsRating points
49hxp CTF 2020572.00008.565
2ISITDTU CTF 2020 Finals2903.00000.000
69Dragon CTF 2020394.00009.279
30Balsn CTF 20201129.00004.227
33SunshineCTF 2020990.00007.014
160Hack.lu CTF 2020347.00006.368
8ISITDTU CTF 2020 Quals6700.000020.642
7DarkCTF16434.000018.880
54TokyoWesterns CTF 6th 2020864.000018.825
89CSAW CTF Qualification Round 20201605.000022.160
49Crypto CTF 2020334.00002.390
21PoseidonCTF 1st Edition2738.00008.313
20InCTF 20205900.000018.334
399CyBRICS CTF 2020113.00000.459
53FAUST CTF 20207527.776010.982
500CTF/TCTF 2020 Quals 655.00009.096
240UUTCTF 202050.00000.268
242HSCTF 72204.00003.267
40Pwn2Win CTF 2020682.000010.505
137TJCTF 2020715.00005.764
101SharkyCTF2335.00005.213
116WPICTF 2020926.00007.589
78PlaidCTF 2020901.000014.621
70DawgCTF 20203780.00008.314
74Midnight Sun CTF 2020 Quals692.00006.709
180VolgaCTF 2020 Qualifier400.00003.299
50TAMUctf 20205404.00000.000
141CONFidence CTF 2020 Teaser9.00000.302
8ångstromCTF 20204755.000032.161
80UCSB iCTF 202019454.61001.007
22Aero CTF 20202693.00009.948
351SarCTF by Saratov State University309.00000.326
19Codegate CTF 2020 Preliminary3679.00007.786
77Insomni'hack teaser 2020166.00004.657

Overall rating place: 125 with 169.326 pts in 2019

Country place: 3

PlaceEventCTF pointsRating points
1TetCTF 202015.00000.000
7justCTF 20193235.000016.423
236ASIS CTF Finals 201938.00000.985
13Pwn2Win CTF 20191628.000020.353
87TastelessCTF 20191.00000.292
40SECCON 2019 Online CTF2225.000014.452
23Reply Cyber Security Challenge 20191302.00009.196
11InCTF 20194050.000021.676
453Newark Academy CTF 20191810.00005.020
327CSAW CTF Qualification Round 2019201.00001.703
166h4ckc0n 2019404.00001.274
74Crypto CTF 2019399.00002.473
8ISITDTU CTF 2019 Finals2182.000011.948
385CyBRICS CTF Quals 201920.00000.199
9ISITDTU CTF 2019 Quals8115.000015.136
457HSCTF 61426.00001.944
563DEF CON CTF Qualifier 2019100.00001.661
141INS'hAck 2019399.00002.493
177Blaze CTF 2019420.00003.145
23ASIS CTF Quals 20191417.000018.039
226ångstromCTF 2019650.00002.851
88PlaidCTF 2019701.000012.577
404WPICTF 201976.00000.277
3AceBear Security Contest 20197823.000025.970
136ENCRYPT CTF1251.00006.858
282SunshineCTF 2019100.00000.754
382VolgaCTF 2019 Qualifier100.00000.904
600CTF/TCTF 2019 Quals632.000010.624
192CONFidence CTF 2019 Teaser52.00000.607
420Pragyan CTF 2019100.00000.681
255BSidesSF 2019 CTF88.00000.446
222TAMUctf 197635.000012.752
108nullcon HackIM 2019458.00001.514
820NeverLAN CTF 2019520.00001.271
29FireShell CTF 20191002.00004.442
89Insomni'hack teaser 2019140.00002.803

Overall rating place: 177 with 103.940 pts in 2018

Country place: 6

PlaceEventCTF pointsRating points
44435C3 CTF1.00000.248
136hxp CTF 2018128.00001.888
40Pwn2Win CTF 2018572.00004.490
70TUCTF 20186788.000017.274
112RITSEC CTF 20181661.00004.756
140HCTF 2018140.84000.507
542Square CTF 2018539.00000.187
130SECCON 2018 Online CTF579.00003.764
148Hack.lu CTF 2018294.00004.491
47picoCTF 201829635.00000.000
214CSAW CTF Qualification Round 2018926.00005.184
8ISITDTU CTF 2018 Final2656.00009.285
197IceCTF 20181785.00008.080
99Codefest CTF 2018335.00000.899
452h4ckc0n 201810.00000.199
62TJCTF 2018940.000010.318
42CODE BLUE CTF 2018 Quals284.00002.389
36ISITDTU CTF 2018 Quals2481.00004.800
198CTFZone 2018 Quals1.00000.125
141Meepwn CTF Quals 2018400.00001.141
31HSCTF 53925.00000.000
95UIUCTF 2018201.00001.388
107ångstromCTF 20181710.000010.449
173UCSB iCTF 201840630.000022.387
24EasyCTF IV4381.00000.000
9AceBear Security Contest 20184028.000011.407

Overall rating place: 3070 with 3.954 pts in 2017

Country place: 37

PlaceEventCTF pointsRating points
187Boston Key Party CTF 2017151.00002.249
460BSides San Francisco CTF20.00000.121
131Codegate 2017 prequals100.00001.165
268Insomni'hack teaser 201750.00000.419

Overall rating place: 189 with 69.770 pts in 2016

Country place: 7

PlaceEventCTF pointsRating points
129SharifCTF 7601.00003.870
188RC3 CTF 20161190.00003.154
86Hack The Vote 2016851.00003.749
196EKOPARTY CTF 2016550.00004.806
103Hack.lu CTF 2016348.00008.932
83HITCON CTF 2016 Quals650.00008.479
365H4ckIT CTF 2016 Online95.00000.338
151ASIS CTF Finals 201665.00001.207
233Tokyo Westerns/MMA CTF 2nd 2016210.00001.946
299h4ckc0n 2016500.00002.469
318IceCTF 20161081.00000.000
84Trend Micro CTF 2016 Online Qualifier600.00003.746
332ASIS CTF Quals 20161.00000.125
591Google Capture The Flag 201675.00000.387
198Blaze CTF 2016420.00002.917
162Nuit du Hack CTF Quals 2016450.00005.444
311Pwn2Win CTF 201610.00000.156
111VolgaCTF 2016 Quals550.00002.822
104BCTF 2016210.00001.647
90Codegate CTF 2016 Quals422.00004.222
218SunshineCTF 2016100.00000.285
950CTF 2016 Quals3.00001.957
185Boston Key Party CTF 20167.00004.699
303Internetwache CTF 2016470.00001.136
426Sharif University CTF 201650.00000.386
271HackIM 20161500.00000.891

Overall rating place: 146 with 77.075 pts in 2015

Country place: 5

PlaceEventCTF pointsRating points
272SECCON 2015 Online CTF600.00002.957
1759447 Security Society CTF 2015322.00002.228
282Hack Dat Kiwi 2015100.00000.656
134RCTF 2015 Quals210.00001.346
25WhiteHat Grand Prix – Qualification Round 2015800.00003.397
134EKOPARTY CTF 2015450.00004.375
81Hack.lu CTF 2015870.00008.889
166HITCON CTF 2015 Quals51.00000.807
36Hackover CTF 2015796.00001.054
32ASIS CTF Finals 20151025.00009.448
358Trend Micro CTF Asia Pacific & Japan 2015 Online Qualifier100.00000.400
609CSAW CTF Qualification Round 2015600.00003.564
73MMA CTF 1st 2015800.00006.065
95PoliCTF 2015750.00004.866
28BackdoorCTF 20151780.000014.240
5160CTF 2015 Quals10.00000.096
55BCTF 2015810.00007.172
113B-Sides Vancouver 201560.00000.155
59Codegate CTF Preliminary 2015500.00005.358

Team members

Team writeups

EventTaskAction
OMH 2021 CTFFlag saver [182]read writeup
OMH 2021 CTFGRUB [182]read writeup
Aero CTF 2021Dummyper [454]read writeup
justCTF [*] 2020debug_me_if_you_can [279]read writeup
justCTF [*] 2020REmap [383]read writeup
De1CTF 2020code_runner [666]read writeup
InCTF 2019easy-vm read writeup