CTF.mn
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Challenge Category Author Solved Score
1. Broken Cert Revenge Cryptography Tulgaaaa 0 1000
2. Shuffle Cryptography unknown 1 1000
3. Урт тоо Cryptography Uzi 1 1000
4. Optical Illusion Steganography khangal 1 1000
5. Fcrackzip As A Service Web Superior 1 1000
6. Cybercook Cryptography Uzi 2 999
7. Encryption service 3 Cryptography Superior 2 999
8. RSA Cryptography TheEyeLid 2 999
9. Memhunt Forensics Id3r 2 999
10. Reflection Miscellaneous unknown 2 999
11. Twister Miscellaneous n01c3 2 999
12. sudoku Pwn myagmartseren 2 999
13. 16 bytes: 512-bit primes Cryptography Superior 3 997
14. At the end Cryptography unknown 3 997
15. flag-3.bmp Forensics Superior 3 997
16. 1950 Matrix Miscellaneous zjzoloo 3 997
17. Scramble Miscellaneous unknown 3 997
18. UMLaa for ULMaa Miscellaneous zjzoloo 3 997
19. Bus 2 Forensics Id3r 4 994
20. flag-2.png Forensics Superior 4 994
21. Linux MemHunt: Flag 2 Forensics Id3r 4 994
22. Shopthing Web Khulegu 4 994
23. Scambet Cryptography Superior 5 990
24. Linux MemHunt: Flag 1 Forensics Id3r 5 990
25. Secret Note Forensics Id3r 5 990
26. em-esrever Reverse Engineering ByamB4 5 990
27. 96 Cryptography ci0 6 985
28. Encryption service 1 Cryptography Superior 6 985
29. Handshake Cryptography Flame 6 985
30. Impossible to decrypt Cryptography Superior 6 985
31. Find me Forensics unknown 6 985
32. give-me-everything Forensics naiame 6 985
33. Malware Analysis: The Maniac Forensics Xyptonize 6 985
34. Nice to meet you Pwn Superior 6 985
35. Faster Rocket Reverse Engineering ByamB4 6 985
36. 16 bytes: 256-bit primes Cryptography Superior 7 979
37. Symbols Cryptography zjzoloo 7 979
38. JPEG Killer Forensics reamb 7 979
39. Temporary data Pwn Myagmartseren 7 979
40. c4 Reverse Engineering ByamB4 7 979
41. Legend Crypto Web unknown 7 979
42. Pixel Quest Web uug4na 7 979
43. Broken Cert Cryptography Tulgaaaa 8 972
44. Look Like Long Cryptography Tulgaaaa 8 972
45. Nameless Cryptography unknown 8 972
46. The First Half: Revolutions Cryptography Superior 8 972
47. Verification: Revolutions Cryptography Superior 8 972
48. Weak Digital Signature Cryptography Flame 8 972
49. Weak Mac Cryptography unknown 8 972
50. Weakryption Cryptography Flame 8 972
51. Flag Crypto Forensics unknown 8 972
52. Obfuscare Forensics fg0x0 8 972
53. xGRAPHy Miscellaneous Tulgaaaa 8 972
54. Feedback for debug Pwn Superior 8 972
55. stack format Pwn myagmartseren 8 972
56. writer Pwn myagmartseren 8 972
57. Bad boy Reverse Engineering ByamB4 8 972
58. Password Reverse Engineering unknown 8 972
59. Space station Reverse Engineering ByamB4 8 972
60. Stego 101 Steganography TheEyeLid 8 972
61. Spooky Scary Web Web Flame 8 972
62. Trinity's Hidden Door Web unknown 8 972
63. Encryption service 2 Cryptography Superior 9 964
64. MATHrix Cryptography zjzoloo 9 964
65. Hid2 Miscellaneous zjzoloo 9 964
66. Hello world Pwn Myagmartseren 9 964
67. Hard RSA Cryptography Flame 10 955
68. 100 triangles Miscellaneous unknown 10 955
69. Find the correct flag Miscellaneous unknown 10 955
70. Need help Miscellaneous unknown 10 955
71. Go winner Pwn myagmartseren 10 955
72. Unknown execution Pwn Superior 10 955
73. 2FA - Hard Reverse Engineering fg0x0 10 955
74. Go Lola Go Reverse Engineering unknown 10 955
75. keygen Reverse Engineering jur 10 955
76. Seed of Greatness: pyc Reverse Engineering Superior 10 955
77. vaultkey Reverse Engineering unknown 10 955
78. You know rust Reverse Engineering unknown 10 955
79. Cryptolink Web Flame 10 955
80. Pickle Web unknown 10 955
81. 16 bytes: 128-bit primes Cryptography Superior 11 945
82. Шүлэг 2025 Cryptography dorjoos 11 945
83. Find the flag Forensics unknown 11 945
84. flag-1.jpg Forensics Superior 11 945
85. Malware Analysis: Lucky Seven Forensics Xyptonize 11 945
86. Spooky Docs Forensics khangal 11 945
87. Simple Binary Miscellaneous unknown 11 945
88. Арга билиг Miscellaneous unknown 11 945
89. Flag for kindness Pwn Superior 11 945
90. 2much Reverse Engineering ByamB4 11 945
91. 7 Seconds to Glory Reverse Engineering fg0x0 11 945
92. Encryption tool Reverse Engineering Superior 11 945
93. Seed of Greatness: ELF Reverse Engineering Superior 11 945
94. SQLi more Web dorjoos 11 945
95. Enigmatic Cryptography Uzi 12 934
96. Oracle is here Cryptography Tulgaaaa 12 934
97. Sorry Forensics unknown 12 934
98. Pid Pad Miscellaneous unknown 12 934
99. Remnant of Cicada Miscellaneous Saruul 12 934
100. exam Pwn myagmartseren 12 934
101. 2FA - Easy Reverse Engineering fg0x0 12 934
102. base or Reverse Engineering myagmartseren 12 934
103. Biter Reverse Engineering ByamB4 12 934
104. complicator Reverse Engineering ByamB4 12 934
105. Indonesia Reverse Engineering unknown 12 934
106. Mexico Reverse Engineering unknown 12 934
107. Seed of Greatness: class Reverse Engineering Superior 12 934
108. Damage Checker Web uug4na 12 934
109. Yoru Web unknown 12 934
110. Encryption Standard Advanced Cryptography Superior 13 922
111. Cicada 3301 Forensics fg0x0 13 922
112. Unknown dump: Flag 2 Forensics Enkul 13 922
113. PixelArt Miscellaneous Uzi 13 922
114. Echo Pwn unknown 13 922
115. Compressor Reverse Engineering ByamB4 13 922
116. Strip Reverse Engineering n01c3 13 922
117. Vaccine Reverse Engineering unknown 13 922
118. To infinity Steganography unknown 13 922
119. Neon Breach Web Bekkaze 13 922
120. PIN PON Web dorjoos 13 922
121. Proto Web Khangal 13 922
122. Vaccine API Web unknown 13 922
123. Checker Cryptography unknown 14 909
124. Italy Cryptography unknown 14 909
125. NoobSaiBotSSuper Cryptography w01f 14 909
126. Verification: Reloaded Cryptography Superior 14 909
127. It's totally readable Forensics unknown 14 909
128. Kinder Surprise Forensics unknown 14 909
129. Leaked Forensics unknown 14 909
130. St3g4N0 Forensics Id3r 14 909
131. Beyond Limit Pwn myagmartseren 14 909
132. Encryptor Reverse Engineering Bekkaze 14 909
133. sxor Reverse Engineering expletive 14 909
134. Babe sql Web dorjoos 14 909
135. Regex Based Firewall Web Superior 14 909
136. Brainrot Cryptography unknown 15 895
137. Hash Game Cryptography Saruul 15 895
138. Baby Forensic Forensics unknown 15 895
139. Cheater: Flag 4 Forensics Xyptonize 15 895
140. Weird message Forensics unknown 15 895
141. PyJail Miscellaneous unknown 15 895
142. Just Wait Me Reverse Engineering ByamB4 15 895
143. WASM in da house Reverse Engineering Flame 15 895
144. Egypt Steganography unknown 15 895
145. CS2 Weapons Database Web uug4na 15 895
146. Kano Cryptography unknown 16 880
147. Guess a password Forensics unknown 16 880
148. MemAnalyze-1 Forensics Id3r 16 880
149. Бие халаалт 2024 Forensics unknown 16 880
150. Decode Miscellaneous Ds3c 16 880
151. Compose Your Flag: Flag 2 Reverse Engineering Flame 16 880
152. R4B B1T Reverse Engineering zjzoloo 16 880
153. API Web unknown 16 880
154. Modular encryption reloaded Cryptography Superior 17 864
155. Nature Cryptography Bilgee 17 864
156. Pheonix Cryptography Flame 17 864
157. Cheater: Flag 3 Forensics Xyptonize 17 864
158. Happily ever after Forensics unknown 17 864
159. Secret SeSAMe Noodles Forensics fg0x0 17 864
160. Secure Miscellaneous unknown 17 864
161. Not used Pwn reamb 17 864
162. Challenge 2 Reverse Engineering unknown 17 864
163. Neo Reverse Engineering zjzoloo 17 864
164. Simpler Reverse Engineering ByamB4 17 864
165. websploit1 Web unknown 17 864
166. are you admin i think nahh Cryptography Tulgaaaa 18 847
167. Just encryption Cryptography unknown 18 847
168. Bus Forensics Id3r 18 847
169. Data Breach Forensics w01f 18 847
170. Klaun Forensics Uzi 18 847
171. String Forensics Ds3c 18 847
172. Нүүрээ будах нь төгс хамгаалалт биш Forensics unknown 18 847
173. Show your skills Pwn Superior 18 847
174. Favorite number Cryptography Superior 19 829
175. r00t Cryptography unknown 19 829
176. Claim your golden tickets Forensics unknown 19 829
177. Edit me 2 Forensics w01f 19 829
178. Weird images Forensics ByamB4 19 829
179. runme Reverse Engineering ByamB4 19 829
180. Least Significant Bit Steganography reamb 19 829
181. Mewo time Web Flame 19 829
182. Embrace the randomness Cryptography Superior 20 810
183. Kindergarten Cryptography zjzoloo 20 810
184. DigMe: Flag 2 Forensics unknown 20 810
185. Heavy One Forensics unknown 20 810
186. M4th Forensics Id3r 20 810
187. Од түүцгээе Forensics unknown 20 810
188. Sentry ward Pwn Bekkaze 20 810
189. Reverse my Reverse Engineering ByamB4 20 810
190. Lil Pump Web unknown 20 810
191. Ubuntu Web unknown 20 810
192. Void Web uug4na 20 810
193. Primal Cryptography Flame 21 790
194. sumPrimes revenge Cryptography Tulgaaaa 21 790
195. Burglar: Flag 2 Forensics Xyptonize 21 790
196. EZ Forensic Forensics Id3r 21 790
197. Headshot Forensics fg0x0 21 790
198. MemAnalyze-2 Forensics Id3r 21 790
199. reducted lvl Forensics unknown 21 790
200. Super Secure Banking App Forensics fg0x0 21 790
201. Unknown dump: Flag 1 Forensics Enkul 21 790
202. So easy rev Reverse Engineering unknown 21 790
203. websploit2 Web unknown 21 790
204. Reality Security Access Cryptography zjzoloo 22 769
205. Stegno Forensics Dudu 22 769
206. Post office 2 Programming Flame 22 769
207. Pug Maestro Web unknown 22 769
208. The First Half: Reloaded Cryptography Superior 23 747
209. "Hello World" Guide Forensics w01f 23 747
210. My little NFT OSINT Flame 23 747
211. Bof Pwn myagmartseren 23 747
212. Shellcode Pwn reamb 23 747
213. Big L or ll Reverse Engineering zjzoloo 23 747
214. Reversing is fun Reverse Engineering unknown 23 747
215. Riddle Web unknown 23 747
216. Web Encryption Web dorjoos 23 747
217. First Blood: Reloaded Cryptography Superior 24 724
218. random Cryptography unknown 24 724
219. Шаар Cryptography unknown 24 724
220. de_chunk Forensics fg0x0 24 724
221. Twins Miscellaneous unknown 24 724
222. Гяндан Miscellaneous Bilgee 24 724
223. 18 толгойт Reverse Engineering unknown 24 724
224. Jax Reverse Engineering jur 24 724
225. Verification Cryptography Superior 25 700
226. Burglar: Flag 1 Forensics Xyptonize 25 700
227. Same OR ? Forensics dorjoos 25 700
228. Касид Forensics unknown 25 700
229. Troy Web Tsolmon 25 700
230. IDK Cryptography unknown 26 675
231. DigMe: Flag 1 Forensics unknown 26 675
232. Registration Pwn Superior 26 675
233. Perception Yields Clarity Reverse Engineering zjzoloo 26 675
234. New Era Steganography w01f 26 675
235. Untrustworthy filtering Web unknown 26 675
236. Seed of future Cryptography unknown 27 649
237. Dumpster Diving Miscellaneous unknown 27 649
238. Ghost hunting Miscellaneous unknown 27 649
239. Call me Pwn reamb 27 649
240. Ghost in the Cybergrid Reverse Engineering Bekkaze 27 649
241. Spike Boom Reverse Engineering unknown 27 649
242. Alphabet Cryptography unknown 28 622
243. roxy-2 Cryptography unknown 28 622
244. Darkness Miscellaneous fg0x0 28 622
245. The Vault Miscellaneous fg0x0 28 622
246. EncodeManiac! Cryptography unknown 29 594
247. Туг олох ажиллагаа Forensics Tuvshuud 29 594
248. Ихэр цамхаг Miscellaneous unknown 29 594
249. First PWN Lesson Reverse Engineering w01f 29 594
250. United airlines Reverse Engineering unknown 29 594
251. Grown Up SSRF Web uug4na 29 594
252. Logmein3 Web reamb 29 594
253. New crypto Cryptography Ds3c 30 565
254. Splitted Forensics unknown 30 565
255. TOP SECRET Forensics dorjoos 30 565
256. Seeder Reverse Engineering ByamB4 30 565
257. Crypto analysis Cryptography unknown 31 535
258. roxy-1 Cryptography unknown 31 535
259. unknown key but known Cryptography Tulgaaaa 31 535
260. Kitana Forensics unknown 31 535
261. Random images Forensics unknown 31 535
262. License key Reverse Engineering unknown 31 535
263. License key 2023 Reverse Engineering unknown 31 535
264. string Reverse Engineering unknown 31 535
265. Find Steganography unknown 31 535
266. Толгой 2025 Forensics dorjoos 32 504
267. pb!n Miscellaneous unknown 32 504
268. Dig Reverse Engineering unknown 32 504
269. Brain teaser Steganography Uzi 32 504
270. 1-р шатны дараа Cryptography zjzoloo 33 472
271. Advanced Encryption Standard Cryptography Superior 33 472
272. Fruit Reverse Engineering Ds3c 33 472
273. py Reverse Engineering reamb 33 472
274. Holy Letter Cryptography zjzoloo 34 439
275. Log Miscellaneous Uzi 34 439
276. Puzzle Miscellaneous unknown 34 439
277. Arithmetic expression Web unknown 34 439
278. warmup Forensics w01f 35 405
279. Stay consistent Web unknown 35 405
280. Modular encryption Cryptography Tulgaaaa 36 370
281. Scan me Cryptography unknown 36 370
282. The First Half Cryptography Superior 36 370
283. Warmup 2024 Cryptography unknown 36 370
284. Өндөр чинь хэд вэ Forensics unknown 36 370
285. Newsletter - qik OSINT unknown 36 370
286. Hunt begins Reverse Engineering unknown 36 370
287. Inside Reverse Engineering n01c3 36 370
288. Могой Reverse Engineering unknown 36 370
289. Эрээн алаг Steganography unknown 36 370
290. pcap forensic 100 Forensics unknown 37 334
291. Шийр Web unknown 37 334
292. RSA tutorial Cryptography Superior 38 297
293. Ticket Generator Cryptography Bilgee 38 297
294. Batman Forensics unknown 38 297
295. Magic bytes Forensics unknown 38 297
296. Yours Forensics unknown 38 297
297. Edit me Forensics Ds3c 39 259
298. Ходоод Reverse Engineering unknown 39 259
299. Decrypt me: 6 Cryptography unknown 40 220
300. Number2Text Cryptography unknown 40 220
301. Унш унш бас дахин унш Cryptography unknown 40 220
302. Art of Bruteforce Forensics unknown 40 220
303. Муур багш Forensics unknown 40 220
304. Qu1ck Miscellaneous Uzi 40 220
305. The Voice of Dota 2 Miscellaneous fg0x0 40 220
306. Box in the box Forensics unknown 41 180
307. Тасархай файл Forensics Superior 41 180
308. Who is your daddy? Miscellaneous unknown 41 180
309. Post office 1 Programming Flame 41 180
310. Геометр Programming unknown 41 180
311. My Customers Web unknown 41 180
312. XOR without X Cryptography Superior 42 139
313. WarmUP 2025 Forensics dorjoos 42 139
314. Галуун цуваа Programming unknown 42 139
315. Lazy boy Reverse Engineering ByamB4 42 139
316. dlugi Cryptography unknown 43 97
317. Har tsagaan honi Miscellaneous zjzoloo 43 97
318. Back To The Past OSINT Uzi 43 97
319. Nightfall Cryptography unknown 44 54
320. Netflix Miscellaneous unknown 44 54
321. Learning Reverse Engineering ByamB4 44 54
322. Magic Steganography Uzi 44 54
323. Really Suspicious Algorithm Cryptography Superior 45 10
324. Hacker_Kid Forensics unknown 45 10
325. md5 Forensics reamb 45 10
326. Sub Zero Steganography unknown 45 10
327. Cheater: Flag 2 Forensics Xyptonize 46 10
328. A lot of technique Reverse Engineering T6X3G 46 10
329. 1337 Web fg0x0 46 10
330. Flag giveaway Web Superior 46 10
331. Warmup 2019 Web unknown 46 10
332. Complete random key Cryptography Superior 47 10
333. Execution redirect Reverse Engineering unknown 47 10
334. Smartdoor Reverse Engineering Bekkaze 47 10
335. Spike Reverse Engineering unknown 47 10
336. 4r3 Y0u Bl1nd Cryptography Uzi 48 10
337. Onion flag Forensics unknown 48 10
338. Storm Forensics unknown 48 10
339. Найраа 2 Web reamb 48 10
340. Crypto Sensei Cryptography unknown 49 10
341. Obfuscated Arga ys Forensics reamb 49 10
342. Sainuu Forensics unknown 49 10
343. Decode pls Reverse Engineering unknown 49 10
344. Can you see Steganography uug4na 49 10
345. Dance Dance Dance Cryptography unknown 50 10
346. xo | rorororo Cryptography w01f 50 10
347. Perfect Nature Gallery Forensics olsujabu 50 10
348. Message to you Forensics unknown 51 10
349. java Reverse Engineering reamb 51 10
350. Human Or Orc Steganography unknown 51 10
351. Юлий Цезарийн төгсгөл Cryptography w01f 52 10
352. Дэлгүүр хэсэх үү? Pwn Bilgee 52 10
353. Alice and Bob Part 2 Cryptography Ds3c 53 10
354. 1 ⊕ 1 = 0 Miscellaneous Uzi 53 10
355. Shredder Miscellaneous unknown 53 10
356. Рийл крипто Cryptography w01f 54 10
357. Chopper Steganography unknown 54 10
358. Orb Web fg0x0 54 10
359. Зургийг нээхэд хүссэн зүйл чинь байгаа Forensics unknown 55 10
360. QR Miscellaneous unknown 55 10
361. Чанасан толгой Web Flame 55 10
362. Baby crypto Cryptography Flame 56 10
363. sumPrimes Cryptography Tulgaaaa 56 10
364. Бие халаалт Cryptography Superior 56 10
365. Professor Forensics unknown 56 10
366. 中文余数 Cryptography Tulgaaaa 57 10
367. Blueteeth Forensics unknown 57 10
368. Толь бичиг Reverse Engineering Bilgee 57 10
369. Baby Web Web w01f 57 10
370. Decode me: 2 Cryptography unknown 58 10
371. Chop and change Web unknown 58 10
372. Logmein2 Web reamb 58 10
373. Morse Cryptography unknown 59 10
374. Real Hacker Forensics unknown 59 10
375. Goofyshit Miscellaneous Uzi 59 10
376. No Brain? Miscellaneous unknown 59 10
377. Ping 2 Web Bekkaze 59 10
378. GOT.jpg Forensics unknown 60 10
379. Decrypt me: 7 Cryptography unknown 61 10
380. Pymoji Miscellaneous Khangal 61 10
381. Oold ikon OSINT unknown 61 10
382. Найраа Web unknown 61 10
383. Cookbook Cryptography unknown 62 10
384. Ping 1 Web Bekkaze 62 10
385. Decrypt me: 2 Cryptography unknown 63 10
386. Bipolar Forensics n01c3 64 10
387. Compose Your Flag: Flag 1 Reverse Engineering Flame 65 10
388. 1_26 Cryptography unknown 66 10
389. can you see it Forensics reamb 66 10
390. Unsecure protocol Forensics unknown 67 10
391. Master Yoda Web unknown 67 10
392. Dub or sub? Forensics Flame 70 10
393. Certification Cryptography Uzi 71 10
394. Simple Puzzle Cryptography unknown 71 10
395. Decrypt me: 8 Cryptography unknown 72 10
396. Easy forensic 1 Forensics unknown 72 10
397. Миний хэнз флаг Miscellaneous Superior 73 10
398. Weak password Web unknown 73 10
399. 2D Cryptography unknown 74 10
400. We Will Rock You Forensics reamb 74 10
401. Cave Web uug4na 75 10
402. 13-р зуун 2018 Cryptography Ds3c 78 10
403. Decode me: 8 Cryptography unknown 81 10
404. Library Web uug4na 81 10
405. Old but gold Cryptography unknown 82 10
406. Wakanda үүрд Cryptography Bilgee 82 10
407. EZ Steganography unknown 83 10
408. Easy RSA Cryptography Xyptonize 85 10
409. Decode me: 9 Cryptography unknown 86 10
410. Нууц зурвас Cryptography Superior 89 10
411. Матрёшка Forensics Flame 92 10
412. Шүлэг Cryptography now.sh 94 10
413. RGB Plane Forensics Uzi 97 10
414. Чухал биш битүүд Steganography Superior 97 10
415. Ромын байлдан дагуулагч Cryptography unknown 100 10
416. Decrypt me: 5 Cryptography unknown 103 10
417. Shiree Cryptography olsujabu 105 10
418. Prime Programming Ds3c 105 10
419. 13-р зуун Cryptography unknown 108 10
420. Бие халаалт 2018 Cryptography Ds3c 108 10
421. Stupid JS Steganography reamb 114 10
422. Cheater: Flag 1 Forensics Xyptonize 115 10
423. Decode me: 5 Cryptography unknown 117 10
424. Decode me: 4 Cryptography unknown 119 10
425. Decrypt me: 1 Cryptography unknown 121 10
426. Decode me: 3 Cryptography unknown 127 10
427. roshan's banner Cryptography Tulgaaaa 133 10
428. Decode me: 1 Cryptography unknown 137 10
429. Logmein1 Web reamb 139 10
430. zipper Forensics ByamB4 140 10
431. GG Miscellaneous unknown 153 10
432. Emojis Cryptography Uzi 166 10
433. Цэцэгхээн Forensics olsujabu 175 10
434. Smells like 10 Spirit Cryptography unknown 178 10
435. First blood Cryptography Flame 188 10