Thu, 26 March 2026, 07:30 UTC — Fri, 27 March 2026, 07:30 UTC 
On-site
A Stranger's CTF event.
Format: Jeopardy 
Official URL: https://upsidectf.online/
Event organizers
EVENT WILL TAKE PLACE FROM
March 25, 2026, at 12:00 PM IST (06:30 UTC)
To
March 26, 2026, at 12:00 PM IST (06:30 UTC)
Welcome to Stranger's CTF! Hosted by RCCIIT in Kolkata, India, this is a Jeopardy-style Capture The Flag competition featuring a custom, Stranger Things-themed infrastructure.
Prepare to test your skills across Web Exploitation, Reverse Engineering, Binary Exploitation, Forensics, and Cryptography.
Will you escape the Upside Down?
* Team Size: Up to 3 members.
* Format: Onsite / Jeopardy
1st: CRTP + CASA + Domain
2nd: APU+ + ACP + Domain
3rd: ACP + Domain
4th-8th: ACP + Domain
9th-10th: Domain Only
11th: ACP
12th-18th: CASA
19th-25th: APU+
201 teams total
| Place | Team | CTF points | Rating points | |
|---|---|---|---|---|
| 1 | Sehan Ad. | 1580.000 | 0.000 | |
| 2 | CyberwireZ | 1580.000 | 0.000 | |
| 3 | Lazarus | 1580.000 | 0.000 | |
| 4 | B1TOP$ | 1580.000 | 0.000 | |
| 5 | Zero Lag | 1580.000 | 0.000 | |
| 6 | aGVja2Vyeg== | 1580.000 | 0.000 | |
| 7 | Team_created | 1580.000 | 0.000 | |
| 8 | Wolfify | 1580.000 | 0.000 | |
| 9 | B1T0P$ | 1580.000 | 0.000 | |
| 10 | OxV01D | 1580.000 | 0.000 | |
| 11 | Sugarglider$ | 1580.000 | 0.000 | |
| 12 | SOS | 1580.000 | 0.000 | |
| 13 | ExploitsFromHeaven | 1580.000 | 0.000 | |
| 14 | TheWallOfAi | 1580.000 | 0.000 | |
| 15 | EDCCS | 1580.000 | 0.000 | |
| 16 | Sntax Squad | 1575.000 | 0.000 | |
| 17 | boyzero753 | 1575.000 | 0.000 | |
| 18 | Null Authority | 1575.000 | 0.000 | |
| 19 | THEM?! | 1560.000 | 0.000 | |
| 20 | W4llz | 1545.000 | 0.000 | |
| 21 | R_OxPloit3rs | 1545.000 | 0.000 | |
| 22 | 0nyX | 1545.000 | 0.000 | |
| 23 | Nattt | 1540.000 | 0.000 | |
| 24 | CYBERDUNE CLUB | 1500.000 | 0.000 | |
| 25 | r00t | 1500.000 | 0.000 | |
| 26 | LeetSh4d0ws | 1495.000 | 0.000 | |
| 27 | Krypt0n | 1495.000 | 0.000 | |
| 28 | TH0RSTR1K3 | 1495.000 | 0.000 | |
| 29 | 70M470_50UP | 1495.000 | 0.000 | |
| 30 | Sh4d0w_br0k3rs | 1495.000 | 0.000 | |
| 31 | IIT(BHU)CyberSec | 1495.000 | 0.000 | |
| 32 | T3AM KNU11 | 1490.000 | 0.000 | |
| 33 | Kali Team | 1490.000 | 0.000 | |
| 34 | Ambr0s1a! | 1490.000 | 0.000 | |
| 35 | Bangarang | 1490.000 | 0.000 | |
| 36 | Team Hackalypse | 1485.000 | 0.000 | |
| 37 | 0xFUN | 1485.000 | 0.000 | |
| 38 | Bikin1 Bottom | 1460.000 | 0.000 | |
| 39 | Abaddon | 1445.000 | 0.000 | |
| 40 | NOtFound_404 | 1440.000 | 0.000 | |
| 41 | NoThoughtsPurePrompt | 1415.000 | 0.000 | |
| 42 | H@ckw@r | 1415.000 | 0.000 | |
| 43 | 0$3cUR17y | 1415.000 | 0.000 | |
| 44 | D4rk sec | 1410.000 | 0.000 | |
| 45 | midmax | 1410.000 | 0.000 | |
| 46 | Haoyang Lu | 1400.000 | 0.000 | |
| 47 | sudowers | 1385.000 | 0.000 | |
| 48 | Desi_Hackers | 1385.000 | 0.000 | |
| 49 | 0day | 1380.000 | 0.000 | |
| 50 | h1r@n0_n1nj45 | 1355.000 | 0.000 | |
| 51 | TEAM_UNFINDABLES | 1330.000 | 0.000 | |
| 52 | 0xHydra | 1325.000 | 0.000 | |
| 53 | ArkoseLabs | 1310.000 | 0.000 | |
| 54 | Purandar | 1290.000 | 0.000 | |
| 55 | Cybersen't | 1255.000 | 0.000 | |
| 56 | ROOTFORCE | 1250.000 | 0.000 | |
| 57 | Oinodecam | 1245.000 | 0.000 | |
| 58 | Seil | 1235.000 | 0.000 | |
| 59 | 1ts_n0t_s0_e4sy_my_h0n3y | 1225.000 | 0.000 | |
| 60 | Xyl0n | 1205.000 | 0.000 | |
| 61 | Sentinels of Vigil | 1185.000 | 0.000 | |
| 62 | met | 1185.000 | 0.000 | |
| 63 | Kuwait | 1160.000 | 0.000 | |
| 64 | Butt0nsh4kers | 1150.000 | 0.000 | |
| 65 | soala gogo | 1115.000 | 0.000 | |
| 66 | Gh0stBytes | 1100.000 | 0.000 | |
| 67 | K0T4KB45T4R | 1095.000 | 0.000 | |
| 68 | BitBr34kers | 1085.000 | 0.000 | |
| 69 | LappungCTF{} | 1080.000 | 0.000 | |
| 70 | postintel | 1045.000 | 0.000 | |
| 71 | Playin_in_my_free_time_today | 1040.000 | 0.000 | |
| 72 | JIT-Dozer | 1030.000 | 0.000 | |
| 73 | MDH4L4H4T_T34M | 1030.000 | 0.000 | |
| 74 | NINE-ELEVEN | 1015.000 | 0.000 | |
| 75 | l0rik | 1005.000 | 0.000 | |
| 76 | Hang Shangyan | 1005.000 | 0.000 | |
| 77 | cybertechie | 990.000 | 0.000 | |
| 78 | nous | 975.000 | 0.000 | |
| 79 | 3p1t0m3 | 970.000 | 0.000 | |
| 80 | ROPgods | 965.000 | 0.000 | |
| 81 | nobody | 915.000 | 0.000 | |
| 82 | syndication | 910.000 | 0.000 | |
| 83 | he is me | 905.000 | 0.000 | |
| 84 | w00f.exe | 775.000 | 0.000 | |
| 85 | gopalkuasadua | 755.000 | 0.000 | |
| 86 | Ctrl+Sena | 740.000 | 0.000 | |
| 87 | CyberTitan | 740.000 | 0.000 | |
| 88 | candimbayetu | 730.000 | 0.000 | |
| 89 | Grim | 715.000 | 0.000 | |
| 90 | CyberHeros | 715.000 | 0.000 | |
| 91 | Sakur4 | 715.000 | 0.000 | |
| 92 | izwick | 705.000 | 0.000 | |
| 93 | Spiderverse | 695.000 | 0.000 | |
| 94 | Buffer Overlords | 685.000 | 0.000 | |
| 95 | Cyberians | 680.000 | 0.000 | |
| 96 | TRISHUL CYBER SYNDICATS | 680.000 | 0.000 | |
| 97 | walkers | 675.000 | 0.000 | |
| 98 | Team C4yl4 | 670.000 | 0.000 | |
| 99 | fish | 655.000 | 0.000 | |
| 100 | Cur5ed_Protocol | 600.000 | 0.000 | |
| 101 | 10xdragon | 585.000 | 0.000 | |
| 102 | Sanj77 | 585.000 | 0.000 | |
| 103 | movrax60 | 560.000 | 0.000 | |
| 104 | NCSR | 540.000 | 0.000 | |
| 105 | T1L4NGY0N | 540.000 | 0.000 | |
| 106 | 5YPHER | 540.000 | 0.000 | |
| 107 | Zer1 | 520.000 | 0.000 | |
| 108 | cyr0n_iq | 505.000 | 0.000 | |
| 109 | fiverrchan | 490.000 | 0.000 | |
| 110 | Achraf | 490.000 | 0.000 | |
| 111 | a.o.t.d | 460.000 | 0.000 | |
| 112 | onleaf | 455.000 | 0.000 | |
| 113 | vxon | 455.000 | 0.000 | |
| 114 | Rojk9 | 455.000 | 0.000 | |
| 115 | Coder is back | 455.000 | 0.000 | |
| 116 | kolna ala | 440.000 | 0.000 | |
| 117 | Meta squad | 435.000 | 0.000 | |
| 118 | KNITU | 425.000 | 0.000 | |
| 119 | 0xSegNull | 425.000 | 0.000 | |
| 120 | SourceX | 420.000 | 0.000 | |
| 121 | H3X_H0I3S | 420.000 | 0.000 | |
| 122 | H3x_L0rd5! | 420.000 | 0.000 | |
| 123 | Wangara | 420.000 | 0.000 | |
| 124 | fu11b00t | 415.000 | 0.000 | |
| 125 | BinaryHunters | 410.000 | 0.000 | |
| 126 | Xsparks | 405.000 | 0.000 | |
| 127 | windfall | 400.000 | 0.000 | |
| 128 | xA&Hx NULLCORE Exploiters | 395.000 | 0.000 | |
| 129 | QW3RTY_vV | 395.000 | 0.000 | |
| 130 | SuperUsers33 | 390.000 | 0.000 | |
| 131 | CYBΞRSΞN | 390.000 | 0.000 | |
| 132 | bakamu | 390.000 | 0.000 | |
| 133 | mossad | 385.000 | 0.000 | |
| 134 | #BughaneAcademy# | 365.000 | 0.000 | |
| 135 | Valdyr | 355.000 | 0.000 | |
| 136 | VLUTEsec03 | 345.000 | 0.000 | |
| 137 | P321_r415e | 345.000 | 0.000 | |
| 138 | ScoopsTroop | 340.000 | 0.000 | |
| 139 | Callipygian Consortium of Cryptography | 335.000 | 0.000 | |
| 140 | DarkingRayleigh | 320.000 | 0.000 | |
| 141 | N!ghtM4re | 320.000 | 0.000 | |
| 142 | cyb3rknight5 | 315.000 | 0.000 | |
| 143 | VSL.Sp33d_Of_T1m3 | 310.000 | 0.000 | |
| 144 | 401_eleven | 300.000 | 0.000 | |
| 145 | $h@dow_R3con | 300.000 | 0.000 | |
| 146 | Infernip | 290.000 | 0.000 | |
| 147 | fzhshzh | 270.000 | 0.000 | |
| 148 | Grey Fox | 240.000 | 0.000 | |
| 149 | Cybercanada2026 | 240.000 | 0.000 | |
| 150 | F25 | 230.000 | 0.000 | |
| 151 | Ashen Cypher | 220.000 | 0.000 | |
| 152 | H4CK3RF0RC3 | 210.000 | 0.000 | |
| 153 | DIGGAJ | 205.000 | 0.000 | |
| 154 | ttm | 205.000 | 0.000 | |
| 155 | drogonarmy | 200.000 | 0.000 | |
| 156 | g00master | 200.000 | 0.000 | |
| 157 | OnePiece | 195.000 | 0.000 | |
| 158 | netflix n chill | 185.000 | 0.000 | |
| 159 | NovaX | 170.000 | 0.000 | |
| 160 | VLUTEsec02 | 170.000 | 0.000 | |
| 161 | roticanai | 170.000 | 0.000 | |
| 162 | sadas | 160.000 | 0.000 | |
| 163 | qwe | 140.000 | 0.000 | |
| 164 | skibidi | 135.000 | 0.000 | |
| 165 | Localhost969 | 135.000 | 0.000 | |
| 166 | misaki | 130.000 | 0.000 | |
| 167 | m0us3 | 125.000 | 0.000 | |
| 168 | zsteg | 115.000 | 0.000 | |
| 169 | Sidra Mehak Shahid | 115.000 | 0.000 | |
| 170 | k3ddd | 110.000 | 0.000 | |
| 171 | cyber kiddies | 105.000 | 0.000 | |
| 172 | 111 | 100.000 | 0.000 | |
| 173 | asdf | 100.000 | 0.000 | |
| 174 | DFFS | 90.000 | 0.000 | |
| 175 | Cyber nex | 80.000 | 0.000 | |
| 176 | Avengers | 80.000 | 0.000 | |
| 177 | bhairoba | 75.000 | 0.000 | |
| 178 | Hugh Amy | 75.000 | 0.000 | |
| 179 | abob | 75.000 | 0.000 | |
| 180 | team wafi | 75.000 | 0.000 | |
| 181 | tuttu da | 70.000 | 0.000 | |
| 182 | mi-noir | 70.000 | 0.000 | |
| 183 | nervteam | 70.000 | 0.000 | |
| 184 | nexus | 65.000 | 0.000 | |
| 185 | bobus | 55.000 | 0.000 | |
| 186 | HeavenFromCTF | 45.000 | 0.000 | |
| 187 | xyss | 40.000 | 0.000 | |
| 188 | VLUTEsec | 40.000 | 0.000 | |
| 189 | OxLaSt | 40.000 | 0.000 | |
| 190 | fegeli3059 | 40.000 | 0.000 | |
| 191 | Xyz | 40.000 | 0.000 | |
| 192 | HILA_DALA_NA | 30.000 | 0.000 | |
| 193 | 0xfun Opener | 20.000 | 0.000 | |
| 194 | Suiseiseki | 10.000 | 0.000 | |
| 195 | bames nond is having a stronk | 10.000 | 0.000 | |
| 196 | Creepy Pasta | 10.000 | 0.000 | |
| 197 | 333 | 10.000 | 0.000 | |
| 198 | fsoci3ty | 10.000 | 0.000 | |
| 199 | eaglestrike | 10.000 | 0.000 | |
| 200 | Berzerkers | 5.000 | 0.000 | |
| 201 | Nux | 5.000 | 0.000 | |
hey guys, how can i contact via discord ? We couldnt register to ctf, can u guys add
the duration written in ctftime is completely wrong the ctf started yesterday and now its ended
