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