CTF.mn
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Challenge Category Author Solved Score
1. Shuffle Cryptography unknown 1 1000
2. flag-2.png Forensics Superior 1 1000
3. flag-3.bmp Forensics Superior 1 1000
4. sudoku Pwn myagmartseren 1 1000
5. Fcrackzip As A Service Web Superior 1 1000
6. Encryption service 3 Cryptography Superior 2 999
7. Memhunt Forensics Id3r 2 999
8. 1950 Matrix Miscellaneous zjzoloo 2 999
9. Nice to meet you Pwn Superior 2 999
10. Shopthing Web unknown 2 999
11. 16 bytes: 512-bit primes Cryptography Superior 3 997
12. At the end Cryptography unknown 3 997
13. Look Like Long Cryptography Tulgaaaa 3 997
14. Scambet Cryptography Superior 3 997
15. Secret Note Forensics Id3r 3 997
16. Stego 101 Steganography unknown 3 997
17. Encryption service 1 Cryptography Superior 4 994
18. Weak Digital Signature Cryptography Flame 4 994
19. Bus 2 Forensics Id3r 4 994
20. Linux MemHunt: Flag 2 Forensics Id3r 4 994
21. Feedback for debug Pwn Superior 4 994
22. stack format Pwn myagmartseren 4 994
23. Temporary data Pwn Myagmartseren 4 994
24. writer Pwn myagmartseren 4 994
25. em-esrever Reverse Engineering ByamB4 4 994
26. Legend Crypto Web unknown 4 994
27. Symbols Cryptography zjzoloo 5 990
28. Find me Forensics unknown 5 990
29. Linux MemHunt: Flag 1 Forensics Id3r 5 990
30. Malware Analysis: The Maniac Forensics Xyptonize 5 990
31. xGRAPHy Miscellaneous Tulgaaaa 5 990
32. c4 Reverse Engineering ByamB4 5 990
33. 16 bytes: 256-bit primes Cryptography Superior 6 985
34. Impossible to decrypt Cryptography Superior 6 985
35. Flag Crypto Forensics unknown 6 985
36. Sorry Forensics unknown 6 985
37. Faster Rocket Reverse Engineering ByamB4 6 985
38. Space station Reverse Engineering ByamB4 6 985
39. vaultkey Reverse Engineering unknown 6 985
40. Encryption service 2 Cryptography Superior 7 979
41. Encryption Standard Advanced Cryptography Superior 7 979
42. Hard RSA Cryptography Flame 7 979
43. Weak Mac Cryptography unknown 7 979
44. Шүлэг 2025 Cryptography dorjoos 7 979
45. JPEG Killer Forensics reamb 7 979
46. Go winner Pwn myagmartseren 7 979
47. Biter Reverse Engineering ByamB4 7 979
48. Spooky Scary Web Web Flame 7 979
49. Broken Cert Cryptography Tulgaaaa 8 972
50. The First Half: Revolutions Cryptography Superior 8 972
51. Verification: Revolutions Cryptography Superior 8 972
52. flag-1.jpg Forensics Superior 8 972
53. Flag for kindness Pwn Superior 8 972
54. Hello world Pwn Myagmartseren 8 972
55. Unknown execution Pwn Superior 8 972
56. 7 Seconds to Glory Reverse Engineering fg0x0 8 972
57. Bad boy Reverse Engineering ByamB4 8 972
58. complicator Reverse Engineering ByamB4 8 972
59. Seed of Greatness: ELF Reverse Engineering Superior 8 972
60. Cryptolink Web Flame 8 972
61. MATHrix Cryptography zjzoloo 9 964
62. Find the flag Forensics unknown 9 964
63. Hid2 Miscellaneous zjzoloo 9 964
64. exam Pwn myagmartseren 9 964
65. 2much Reverse Engineering ByamB4 9 964
66. Go Lola Go Reverse Engineering unknown 9 964
67. keygen Reverse Engineering jur 9 964
68. Seed of Greatness: class Reverse Engineering Superior 9 964
69. Seed of Greatness: pyc Reverse Engineering Superior 9 964
70. You know rust Reverse Engineering unknown 9 964
71. 16 bytes: 128-bit primes Cryptography Superior 10 955
72. Brainrot Cryptography unknown 10 955
73. Leaked Forensics unknown 10 955
74. Бие халаалт 2024 Forensics unknown 10 955
75. Find the correct flag Miscellaneous unknown 10 955
76. Need help Miscellaneous unknown 10 955
77. Арга билиг Miscellaneous unknown 10 955
78. Echo Pwn unknown 10 955
79. Vaccine Reverse Engineering unknown 10 955
80. Pickle Web unknown 10 955
81. Enigmatic Cryptography Uzi 11 945
82. Oracle is here Cryptography Tulgaaaa 11 945
83. Baby Forensic Forensics unknown 11 945
84. Malware Analysis: Lucky Seven Forensics Xyptonize 11 945
85. Pid Pad Miscellaneous unknown 11 945
86. PixelArt Miscellaneous Uzi 11 945
87. Simple Binary Miscellaneous unknown 11 945
88. Encryptor Reverse Engineering Bekkaze 11 945
89. Regex Based Firewall Web Superior 11 945
90. Pheonix Cryptography Flame 12 934
91. Unknown dump: Flag 2 Forensics Enkul 12 934
92. Remnant of Cicada Miscellaneous Saruul 12 934
93. base or Reverse Engineering myagmartseren 12 934
94. Compressor Reverse Engineering ByamB4 12 934
95. Proto Web Khangal 12 934
96. Yoru Web unknown 12 934
97. Modular encryption reloaded Cryptography Superior 13 922
98. Verification: Reloaded Cryptography Superior 13 922
99. Cheater: Flag 4 Forensics Xyptonize 13 922
100. Cicada 3301 Forensics fg0x0 13 922
101. Post office 2 Programming unknown 13 922
102. Beyond Limit Pwn myagmartseren 13 922
103. Strip Reverse Engineering n01c3 13 922
104. sxor Reverse Engineering expletive 13 922
105. API Web unknown 13 922
106. Neon Breach Web Bekkaze 13 922
107. are you admin i think nahh Cryptography Tulgaaaa 14 909
108. Hash Game Cryptography Saruul 14 909
109. NoobSaiBotSSuper Cryptography w01f 14 909
110. It's totally readable Forensics unknown 14 909
111. MemAnalyze-1 Forensics Id3r 14 909
112. St3g4N0 Forensics Id3r 14 909
113. PyJail Miscellaneous unknown 14 909
114. Show your skills Pwn Superior 14 909
115. Compose Your Flag: Flag 2 Reverse Engineering Flame 14 909
116. WASM in da house Reverse Engineering Flame 14 909
117. Embrace the randomness Cryptography Superior 15 895
118. Favorite number Cryptography Superior 15 895
119. Just encryption Cryptography unknown 15 895
120. r00t Cryptography unknown 15 895
121. Cheater: Flag 3 Forensics Xyptonize 15 895
122. Guess a password Forensics unknown 15 895
123. Headshot Forensics fg0x0 15 895
124. Weird message Forensics unknown 15 895
125. Secure Miscellaneous unknown 15 895
126. Not used Pwn reamb 15 895
127. Challenge 2 Reverse Engineering unknown 15 895
128. Just Wait Me Reverse Engineering ByamB4 15 895
129. R4B B1T Reverse Engineering zjzoloo 15 895
130. Kano Cryptography unknown 16 880
131. Nature Cryptography Bilgee 16 880
132. Edit me 2 Forensics w01f 16 880
133. Нүүрээ будах нь төгс хамгаалалт биш Forensics unknown 16 880
134. Decode Miscellaneous Ds3c 16 880
135. Neo Reverse Engineering zjzoloo 16 880
136. Simpler Reverse Engineering ByamB4 16 880
137. Bus Forensics Id3r 17 864
138. de_chunk Forensics fg0x0 17 864
139. Klaun Forensics Uzi 17 864
140. reducted lvl Forensics unknown 17 864
141. Secret SeSAMe Noodles Forensics fg0x0 17 864
142. Reverse my Reverse Engineering ByamB4 17 864
143. runme Reverse Engineering ByamB4 17 864
144. Mewo time Web Flame 17 864
145. Burglar: Flag 2 Forensics Xyptonize 18 847
146. Data Breach Forensics w01f 18 847
147. DigMe: Flag 2 Forensics unknown 18 847
148. Super Secure Banking App Forensics fg0x0 18 847
149. Од түүцгээе Forensics unknown 18 847
150. Sentry ward Pwn Bekkaze 18 847
151. So easy rev Reverse Engineering unknown 18 847
152. First Blood: Reloaded Cryptography Superior 19 829
153. Kindergarten Cryptography zjzoloo 19 829
154. "Hello World" Guide Forensics w01f 19 829
155. M4th Forensics Id3r 19 829
156. Stegno Forensics Dudu 19 829
157. Unknown dump: Flag 1 Forensics Enkul 19 829
158. Weird images Forensics ByamB4 19 829
159. Least Significant Bit Steganography reamb 19 829
160. Ubuntu Web unknown 19 829
161. Void Web uug4na 19 829
162. random Cryptography unknown 20 810
163. Reality Security Access Cryptography zjzoloo 20 810
164. sumPrimes revenge Cryptography Tulgaaaa 20 810
165. Heavy One Forensics unknown 20 810
166. MemAnalyze-2 Forensics Id3r 20 810
167. Bof Pwn myagmartseren 20 810
168. Reversing is fun Reverse Engineering unknown 20 810
169. Lil Pump Web unknown 20 810
170. Pug Maestro Web unknown 20 810
171. Alphabet Cryptography unknown 21 790
172. Primal Cryptography Flame 21 790
173. The First Half: Reloaded Cryptography Superior 21 790
174. EZ Forensic Forensics Id3r 21 790
175. Same OR ? Forensics dorjoos 21 790
176. Riddle Web unknown 21 790
177. Troy Web Tsolmon 21 790
178. Шаар Cryptography unknown 22 769
179. Twins Miscellaneous unknown 22 769
180. Shellcode Pwn reamb 22 769
181. Verification Cryptography Superior 23 747
182. Burglar: Flag 1 Forensics Xyptonize 23 747
183. My little NFT OSINT Flame 23 747
184. Big L or ll Reverse Engineering zjzoloo 23 747
185. Jax Reverse Engineering jur 23 747
186. Advanced Encryption Standard Cryptography Superior 24 724
187. unknown key but known Cryptography Tulgaaaa 24 724
188. Касид Forensics unknown 24 724
189. The Vault Miscellaneous fg0x0 24 724
190. Гяндан Miscellaneous Bilgee 24 724
191. Registration Pwn Superior 24 724
192. 18 толгойт Reverse Engineering unknown 24 724
193. Untrustworthy filtering Web unknown 24 724
194. IDK Cryptography unknown 25 700
195. Seed of future Cryptography unknown 25 700
196. DigMe: Flag 1 Forensics unknown 25 700
197. TOP SECRET Forensics dorjoos 25 700
198. Туг олох ажиллагаа Forensics Tuvshuud 25 700
199. Ghost in the Cybergrid Reverse Engineering Bekkaze 25 700
200. Perception Yields Clarity Reverse Engineering zjzoloo 25 700
201. EncodeManiac! Cryptography unknown 26 675
202. Call me Pwn reamb 26 675
203. Spike Boom Reverse Engineering unknown 26 675
204. Find Steganography unknown 26 675
205. New Era Steganography w01f 26 675
206. Logmein3 Web reamb 26 675
207. Stay consistent Web unknown 26 675
208. Splitted Forensics unknown 27 649
209. Толгой 2025 Forensics dorjoos 27 649
210. Dumpster Diving Miscellaneous unknown 27 649
211. Ghost hunting Miscellaneous unknown 27 649
212. string Reverse Engineering unknown 27 649
213. Crypto analysis Cryptography unknown 28 622
214. roxy-2 Cryptography unknown 28 622
215. Darkness Miscellaneous fg0x0 28 622
216. First PWN Lesson Reverse Engineering w01f 28 622
217. Grown Up SSRF Web uug4na 28 622
218. Ихэр цамхаг Miscellaneous unknown 29 594
219. United airlines Reverse Engineering unknown 29 594
220. Шийр Web unknown 29 594
221. New crypto Cryptography Ds3c 30 565
222. Kitana Forensics unknown 30 565
223. Random images Forensics unknown 30 565
224. License key Reverse Engineering unknown 30 565
225. License key 2023 Reverse Engineering unknown 30 565
226. Seeder Reverse Engineering ByamB4 30 565
227. roxy-1 Cryptography unknown 31 535
228. RSA tutorial Cryptography Superior 31 535
229. Post office 1 Programming unknown 31 535
230. Dig Reverse Engineering unknown 31 535
231. Fruit Reverse Engineering Ds3c 31 535
232. Arithmetic expression Web unknown 31 535
233. 1-р шатны дараа Cryptography zjzoloo 32 504
234. Ticket Generator Cryptography Bilgee 32 504
235. Warmup 2024 Cryptography unknown 32 504
236. pb!n Miscellaneous unknown 32 504
237. Puzzle Miscellaneous unknown 32 504
238. Newsletter - qik OSINT unknown 32 504
239. Brain teaser Steganography Uzi 32 504
240. Holy Letter Cryptography zjzoloo 33 472
241. Modular encryption Cryptography Tulgaaaa 33 472
242. The First Half Cryptography Superior 33 472
243. Log Miscellaneous Uzi 33 472
244. py Reverse Engineering reamb 33 472
245. Өндөр чинь хэд вэ Forensics unknown 34 439
246. My Customers Web unknown 34 439
247. Scan me Cryptography unknown 35 405
248. Magic bytes Forensics unknown 35 405
249. warmup Forensics w01f 35 405
250. Hunt begins Reverse Engineering unknown 35 405
251. Inside Reverse Engineering n01c3 35 405
252. Могой Reverse Engineering unknown 35 405
253. Унш унш бас дахин унш Cryptography unknown 36 370
254. Edit me Forensics Ds3c 36 370
255. pcap forensic 100 Forensics unknown 36 370
256. Yours Forensics unknown 36 370
257. Геометр Programming unknown 36 370
258. Эрээн алаг Steganography unknown 36 370
259. Flag giveaway Web Superior 36 370
260. XOR without X Cryptography Superior 37 334
261. Batman Forensics unknown 37 334
262. Галуун цуваа Programming unknown 37 334
263. Nightfall Cryptography unknown 38 297
264. Number2Text Cryptography unknown 38 297
265. WarmUP 2025 Forensics dorjoos 38 297
266. Decrypt me: 6 Cryptography unknown 39 259
267. Really Suspicious Algorithm Cryptography Superior 39 259
268. Муур багш Forensics unknown 39 259
269. The Voice of Dota 2 Miscellaneous fg0x0 39 259
270. Who is your daddy? Miscellaneous unknown 39 259
271. Lazy boy Reverse Engineering ByamB4 39 259
272. Ходоод Reverse Engineering unknown 39 259
273. Art of Bruteforce Forensics unknown 40 220
274. Box in the box Forensics unknown 40 220
275. Тасархай файл Forensics Superior 40 220
276. Qu1ck Miscellaneous Uzi 40 220
277. A lot of technique Reverse Engineering T6X3G 40 220
278. dlugi Cryptography unknown 41 180
279. md5 Forensics reamb 41 180
280. Back To The Past OSINT Uzi 41 180
281. Har tsagaan honi Miscellaneous zjzoloo 42 139
282. Netflix Miscellaneous unknown 42 139
283. Complete random key Cryptography Superior 43 97
284. Learning Reverse Engineering ByamB4 43 97
285. 1337 Web fg0x0 43 97
286. Warmup 2019 Web unknown 43 97
287. Crypto Sensei Cryptography unknown 44 54
288. Cheater: Flag 2 Forensics Xyptonize 44 54
289. Magic Steganography Uzi 44 54
290. Hacker_Kid Forensics unknown 45 10
291. Onion flag Forensics unknown 45 10
292. QR Miscellaneous unknown 45 10
293. Execution redirect Reverse Engineering unknown 45 10
294. Smartdoor Reverse Engineering Bekkaze 45 10
295. Can you see Steganography uug4na 45 10
296. Sub Zero Steganography unknown 45 10
297. Найраа 2 Web reamb 45 10
298. 4r3 Y0u Bl1nd Cryptography Uzi 46 10
299. Dance Dance Dance Cryptography unknown 46 10
300. Obfuscated Arga ys Forensics reamb 46 10
301. Decode pls Reverse Engineering unknown 46 10
302. Spike Reverse Engineering unknown 46 10
303. Sainuu Forensics unknown 47 10
304. Storm Forensics unknown 47 10
305. Human Or Orc Steganography unknown 47 10
306. xo | rorororo Cryptography w01f 48 10
307. Рийл крипто Cryptography w01f 49 10
308. Perfect Nature Gallery Forensics Givaa 49 10
309. 1 ⊕ 1 = 0 Miscellaneous Uzi 49 10
310. Baby Web Web w01f 49 10
311. Юлий Цезарийн төгсгөл Cryptography w01f 50 10
312. Message to you Forensics unknown 50 10
313. java Reverse Engineering reamb 50 10
314. Зургийг нээхэд хүссэн зүйл чинь байгаа Forensics unknown 51 10
315. Shredder Miscellaneous unknown 51 10
316. Дэлгүүр хэсэх үү? Pwn Bilgee 51 10
317. Chopper Steganography unknown 51 10
318. Logmein2 Web reamb 51 10
319. Orb Web fg0x0 51 10
320. Alice and Bob Part 2 Cryptography Ds3c 52 10
321. Ping 2 Web Bekkaze 52 10
322. Чанасан толгой Web unknown 52 10
323. sumPrimes Cryptography Tulgaaaa 53 10
324. Professor Forensics unknown 53 10
325. Baby crypto Cryptography Flame 54 10
326. 中文余数 Cryptography Tulgaaaa 54 10
327. Blueteeth Forensics unknown 54 10
328. Толь бичиг Reverse Engineering Bilgee 54 10
329. Chop and change Web unknown 54 10
330. Найраа Web unknown 54 10
331. Бие халаалт Cryptography Superior 55 10
332. Decode me: 2 Cryptography unknown 56 10
333. Morse Cryptography unknown 56 10
334. Real Hacker Forensics unknown 56 10
335. No Brain? Miscellaneous unknown 56 10
336. Oold ikon OSINT unknown 56 10
337. Ping 1 Web Bekkaze 57 10
338. Goofyshit Miscellaneous Uzi 58 10
339. Cookbook Cryptography unknown 59 10
340. Decrypt me: 2 Cryptography unknown 59 10
341. Decrypt me: 7 Cryptography unknown 60 10
342. GOT.jpg Forensics unknown 60 10
343. Pymoji Miscellaneous Khangal 60 10
344. Master Yoda Web unknown 61 10
345. Unsecure protocol Forensics unknown 62 10
346. Compose Your Flag: Flag 1 Reverse Engineering Flame 62 10
347. Bipolar Forensics n01c3 63 10
348. can you see it Forensics reamb 64 10
349. Weak password Web unknown 64 10
350. 1_26 Cryptography unknown 65 10
351. Dub or sub? Forensics Flame 66 10
352. Simple Puzzle Cryptography unknown 67 10
353. Easy forensic 1 Forensics unknown 67 10
354. Cave Web uug4na 67 10
355. Certification Cryptography Uzi 68 10
356. Decrypt me: 8 Cryptography unknown 70 10
357. We Will Rock You Forensics reamb 70 10
358. Миний хэнз флаг Miscellaneous Superior 70 10
359. 2D Cryptography unknown 73 10
360. 13-р зуун 2018 Cryptography Ds3c 74 10
361. Library Web uug4na 74 10
362. Decode me: 8 Cryptography unknown 80 10
363. Old but gold Cryptography unknown 80 10
364. EZ Steganography unknown 80 10
365. Wakanda үүрд Cryptography Bilgee 81 10
366. Easy RSA Cryptography Xyptonize 83 10
367. Decode me: 9 Cryptography unknown 85 10
368. Нууц зурвас Cryptography Superior 88 10
369. Матрёшка Forensics Flame 88 10
370. Шүлэг Cryptography now.sh 93 10
371. Чухал биш битүүд Steganography Superior 93 10
372. Ромын байлдан дагуулагч Cryptography unknown 96 10
373. RGB Plane Forensics Uzi 96 10
374. Prime Programming Ds3c 96 10
375. Decrypt me: 5 Cryptography unknown 99 10
376. 13-р зуун Cryptography unknown 102 10
377. Shiree Cryptography Givaa 102 10
378. Бие халаалт 2018 Cryptography Ds3c 103 10
379. Cheater: Flag 1 Forensics Xyptonize 110 10
380. Stupid JS Steganography reamb 110 10
381. Decode me: 5 Cryptography unknown 112 10
382. Decode me: 4 Cryptography unknown 115 10
383. Decrypt me: 1 Cryptography unknown 115 10
384. Decode me: 3 Cryptography unknown 123 10
385. Logmein1 Web reamb 123 10
386. Decode me: 1 Cryptography unknown 131 10
387. roshan's banner Cryptography Tulgaaaa 131 10
388. zipper Forensics ByamB4 133 10
389. GG Miscellaneous unknown 145 10
390. Emojis Cryptography Uzi 162 10
391. Цэцэгхээн Forensics Givaa 167 10
392. Smells like 10 Spirit Cryptography unknown 174 10
393. First blood Cryptography Flame 181 10