CTF.mn
Challenge Category Author Solved Score
1. Fancy text Cryptography Superior 0 1000
2. Prime or not Prime Cryptography Superior 0 1000
3. Clash of MD5 Cryptography Superior 1 1000
4. Collision finder Cryptography Superior 1 1000
5. Argentina Pwn raid 1 1000
6. RandCrack Cryptography Superior 3 997
7. Unknown data Forensics Superior 3 997
8. Stack swing Pwn enhbold 3 997
9. Broken Cert Revenge Cryptography Tulgaaaa 4 994
10. Error Reverse Engineering ByamB4 4 994
11. Proof of work Reverse Engineering Superior 4 994
12. At the end Cryptography unknown 5 990
13. Unknown seed Cryptography Superior 5 990
14. Reflection Miscellaneous unknown 5 990
15. ROP 2025 Pwn enhbold 5 990
16. UMLaa for ULMaa Miscellaneous zjzoloo 6 985
17. 1950 Matrix Miscellaneous zjzoloo 7 979
18. Twister Miscellaneous n01c3 7 979
19. Shuffle Cryptography Khulegu 8 972
20. Memhunt Forensics Id3r 8 972
21. Secret Note Forensics Id3r 8 972
22. The Gerege Revenge Web khangal 8 972
23. 16 bytes: 512-bit primes Cryptography Superior 9 964
24. flag-3.bmp Forensics Superior 9 964
25. Malware Analysis: The Maniac Forensics Xyptonize 9 964
26. Scramble Miscellaneous unknown 9 964
27. sudoku Pwn myagmartseren 9 964
28. Encryption service 2 Cryptography Superior 10 955
29. Linux MemHunt: Flag 1 Forensics Id3r 10 955
30. Linux MemHunt: Flag 2 Forensics Id3r 10 955
31. Fcrackzip As A Service Web Superior 10 955
32. Encryption service 3 Cryptography Superior 11 945
33. xGRAPHy Miscellaneous Tulgaaaa 11 945
34. Scambet Cryptography Superior 12 934
35. Symbols Cryptography zjzoloo 12 934
36. Verification: Revolutions Cryptography Superior 12 934
37. Bus 2 Forensics Id3r 12 934
38. flag-2.png Forensics Superior 12 934
39. Need help Miscellaneous unknown 12 934
40. Simple Binary Miscellaneous unknown 12 934
41. The Gerege Web khangal 12 934
42. 96 Cryptography ci0 13 922
43. The First Half: Revolutions Cryptography Superior 13 922
44. Find me Forensics unknown 13 922
45. The Great Exfiltration of the Steppe Forensics xyptonize 13 922
46. Unknown dump: Flag 2 Forensics Enkul 13 922
47. Find the correct flag Miscellaneous unknown 13 922
48. Hid2 Miscellaneous zjzoloo 13 922
49. Remnant of Cicada Miscellaneous Saruul 13 922
50. Nice to meet you Pwn Superior 13 922
51. Shopthing Web Khulegu 13 922
52. 16 bytes: 128-bit primes Cryptography Superior 14 909
53. Encryption service 1 Cryptography Superior 14 909
54. Cicada 3301 Forensics fg0x0 14 909
55. PixelArt Miscellaneous Uzi 14 909
56. Арга билиг Miscellaneous unknown 14 909
57. Faster Rocket Reverse Engineering ByamB4 14 909
58. Green thing Web nurmukhammyed 14 909
59. Broken Cert Cryptography Tulgaaaa 15 895
60. Impossible to decrypt Cryptography Superior 15 895
61. JPEG Killer Forensics reamb 15 895
62. Go Lola Go Reverse Engineering unknown 15 895
63. Seed of Greatness: pyc Reverse Engineering Superior 15 895
64. The Silent Post Steganography zjzoloo 15 895
65. Handshake Cryptography Flame 16 880
66. Khan's Factorization Raid Cryptography zjzoloo 16 880
67. flag-1.jpg Forensics Superior 16 880
68. Flag Crypto Forensics unknown 16 880
69. Malware Analysis: Lucky Seven Forensics Xyptonize 16 880
70. Obfuscare Forensics fg0x0 16 880
71. St3g4N0 Forensics Id3r 16 880
72. The Hidden Gerege Forensics xyptonize 16 880
73. 100 triangles Miscellaneous unknown 16 880
74. Temporary data Pwn Myagmartseren 16 880
75. c4 Reverse Engineering ByamB4 16 880
76. Password Reverse Engineering unknown 16 880
77. Stego 101 Steganography TheEyeLid 16 880
78. NoobSaiBotSSuper Cryptography w01f 17 864
79. Weakryption Cryptography Flame 17 864
80. Weird message Forensics unknown 17 864
81. em-esrever Reverse Engineering ByamB4 17 864
82. Encryption tool Reverse Engineering Superior 17 864
83. The Wisdom of the Eternal Blue Sky Reverse Engineering bekkaze 17 864
84. vaultkey Reverse Engineering unknown 17 864
85. Horde's Base Cryptography zjzoloo 18 847
86. Oracle is here Cryptography Tulgaaaa 18 847
87. Cheater: Flag 4 Forensics Xyptonize 18 847
88. Find the flag Forensics unknown 18 847
89. MemAnalyze-1 Forensics Id3r 18 847
90. Pid Pad Miscellaneous unknown 18 847
91. 7 Seconds to Glory Reverse Engineering fg0x0 18 847
92. Bad boy Reverse Engineering ByamB4 18 847
93. Compressor Reverse Engineering ByamB4 18 847
94. keygen Reverse Engineering jur 18 847
95. Seed of Greatness: ELF Reverse Engineering Superior 18 847
96. Nomad's Key Cryptography zjzoloo 19 829
97. The Scribe's Little Oopsie Cryptography zjzoloo 19 829
98. Шүлэг 2025 Cryptography dorjoos 19 829
99. give-me-everything Forensics naiame 19 829
100. Echo Pwn unknown 19 829
101. Hello world Pwn Myagmartseren 19 829
102. 2much Reverse Engineering ByamB4 19 829
103. R4B B1T Reverse Engineering zjzoloo 19 829
104. Space station Reverse Engineering ByamB4 19 829
105. Vaccine Reverse Engineering unknown 19 829
106. You know rust Reverse Engineering unknown 19 829
107. 16 bytes: 256-bit primes Cryptography Superior 20 810
108. Kano Cryptography unknown 20 810
109. Look Like Long Cryptography Tulgaaaa 20 810
110. MATHrix Cryptography zjzoloo 20 810
111. Verification: Reloaded Cryptography Superior 20 810
112. Bus Forensics Id3r 20 810
113. Cheater: Flag 3 Forensics Xyptonize 20 810
114. It's totally readable Forensics unknown 20 810
115. Leaked Forensics unknown 20 810
116. Sorry Forensics unknown 20 810
117. 2FA - Hard Reverse Engineering fg0x0 20 810
118. base or Reverse Engineering myagmartseren 20 810
119. Indonesia Reverse Engineering unknown 20 810
120. Mexico Reverse Engineering unknown 20 810
121. Strip Reverse Engineering n01c3 20 810
122. Neon Breach Web Bekkaze 20 810
123. Finite Steppe Cryptography zjzoloo 21 790
124. DigMe: Flag 2 Forensics unknown 21 790
125. Secret SeSAMe Noodles Forensics fg0x0 21 790
126. Unknown dump: Flag 1 Forensics Enkul 21 790
127. stack format Pwn myagmartseren 21 790
128. Challenge 2 Reverse Engineering unknown 21 790
129. complicator Reverse Engineering ByamB4 21 790
130. Compose Your Flag: Flag 2 Reverse Engineering Flame 21 790
131. Just Wait Me Reverse Engineering ByamB4 21 790
132. Neo Reverse Engineering zjzoloo 21 790
133. Italy Cryptography unknown 22 769
134. Modular encryption reloaded Cryptography Superior 22 769
135. Weak Digital Signature Cryptography Flame 22 769
136. Weak Mac Cryptography unknown 22 769
137. Урт тоо Cryptography Uzi 22 769
138. Baby Forensic Forensics unknown 22 769
139. Data Breach Forensics w01f 22 769
140. EZ Forensic Forensics Id3r 22 769
141. Weird images Forensics ByamB4 22 769
142. Decode Miscellaneous Ds3c 22 769
143. Secure Miscellaneous unknown 22 769
144. Feedback for debug Pwn Superior 22 769
145. Go winner Pwn myagmartseren 22 769
146. writer Pwn myagmartseren 22 769
147. Encryptor Reverse Engineering Bekkaze 22 769
148. WASM in da house Reverse Engineering Flame 22 769
149. Cryptolink Web Flame 22 769
150. Lil Pump Web unknown 22 769
151. Trinity's Hidden Door Web unknown 22 769
152. Yoru Web Flame 22 769
153. Hard RSA Cryptography Flame 23 747
154. Hash Game Cryptography Saruul 23 747
155. Nature Cryptography Bilgee 23 747
156. PyJail Miscellaneous unknown 23 747
157. Unknown execution Pwn Superior 23 747
158. Legend Crypto Web unknown 23 747
159. Pickle Web unknown 23 747
160. Nameless Cryptography unknown 24 724
161. Нүүрээ будах нь төгс хамгаалалт биш Forensics unknown 24 724
162. Flag for kindness Pwn Superior 24 724
163. Biter Reverse Engineering ByamB4 24 724
164. Seed of Greatness: class Reverse Engineering Superior 24 724
165. sxor Reverse Engineering expletive 24 724
166. Encryption Standard Advanced Cryptography Superior 25 700
167. Pheonix Cryptography Flame 25 700
168. Burglar: Flag 2 Forensics Xyptonize 25 700
169. Heavy One Forensics unknown 25 700
170. M4th Forensics Id3r 25 700
171. MemAnalyze-2 Forensics Id3r 25 700
172. Гяндан Miscellaneous Bilgee 25 700
173. exam Pwn myagmartseren 25 700
174. Least Significant Bit Steganography reamb 25 700
175. Vaccine API Web unknown 25 700
176. Brainrot Cryptography unknown 26 675
177. Edit me 2 Forensics w01f 26 675
178. Klaun Forensics Uzi 26 675
179. Optical Illusion Steganography khangal 26 675
180. Void Web uug4na 26 675
181. r00t Cryptography unknown 27 649
182. Kinder Surprise Forensics unknown 27 649
183. Бие халаалт 2024 Forensics unknown 27 649
184. My little NFT OSINT Flame 27 649
185. To infinity Steganography unknown 27 649
186. Pixel Quest Web uug4na 27 649
187. Troy Web Tsolmon 27 649
188. Embrace the randomness Cryptography Superior 28 622
189. DigMe: Flag 1 Forensics unknown 28 622
190. Guess a password Forensics unknown 28 622
191. Headshot Forensics fg0x0 28 622
192. Twins Miscellaneous unknown 28 622
193. 2FA - Easy Reverse Engineering fg0x0 28 622
194. Egypt Steganography unknown 28 622
195. New Era Steganography w01f 28 622
196. Spooky Scary Web Web Naba 28 622
197. Super Secure Banking App Forensics fg0x0 29 594
198. Dumpster Diving Miscellaneous unknown 29 594
199. Ghost hunting Miscellaneous unknown 29 594
200. Sentry ward Pwn Bekkaze 29 594
201. So easy rev Reverse Engineering unknown 29 594
202. Regex Based Firewall Web Superior 29 594
203. Enigmatic Cryptography Uzi 30 565
204. Kindergarten Cryptography zjzoloo 30 565
205. New -> Old Cryptography dorjoos 30 565
206. Reality Security Access Cryptography zjzoloo 30 565
207. Burglar: Flag 1 Forensics Xyptonize 30 565
208. reducted lvl Forensics unknown 30 565
209. Касид Forensics unknown 30 565
210. The Vault Miscellaneous fg0x0 30 565
211. Beyond Limit Pwn myagmartseren 30 565
212. 18 толгойт Reverse Engineering unknown 30 565
213. Favorite number Cryptography Superior 31 535
214. First Blood: Reloaded Cryptography Superior 31 535
215. IDK Cryptography unknown 31 535
216. sumPrimes revenge Cryptography Tulgaaaa 31 535
217. Од түүцгээе Forensics unknown 31 535
218. Darkness Miscellaneous fg0x0 31 535
219. Perception Yields Clarity Reverse Engineering zjzoloo 31 535
220. Reverse my Reverse Engineering ByamB4 31 535
221. Spike Boom Reverse Engineering unknown 31 535
222. API Web unknown 31 535
223. Proto Web Khangal 31 535
224. are you admin i think nahh Cryptography Tulgaaaa 32 504
225. EncodeManiac! Cryptography unknown 32 504
226. Primal Cryptography Flame 32 504
227. Ихэр цамхаг Miscellaneous unknown 32 504
228. Big L or ll Reverse Engineering zjzoloo 32 504
229. Jax Reverse Engineering jur 32 504
230. runme Reverse Engineering ByamB4 32 504
231. Simpler Reverse Engineering ByamB4 32 504
232. Riddle Web unknown 32 504
233. random Cryptography unknown 33 472
234. The First Half: Reloaded Cryptography Superior 33 472
235. Verification Cryptography Superior 33 472
236. Шаар Cryptography unknown 33 472
237. Not used Pwn reamb 33 472
238. Just encryption Cryptography unknown 34 439
239. roxy-2 Cryptography unknown 34 439
240. RSA Cryptography TheEyeLid 34 439
241. Happily ever after Forensics unknown 34 439
242. "Hello World" Guide Forensics w01f 34 439
243. Spooky Docs Forensics khangal 34 439
244. Туг олох ажиллагаа Forensics Tuvshuud 34 439
245. Shellcode Pwn reamb 34 439
246. First PWN Lesson Reverse Engineering w01f 34 439
247. License key 2023 Reverse Engineering unknown 34 439
248. SQLi more Web dorjoos 34 439
249. 1-р шатны дараа Cryptography zjzoloo 35 405
250. Kitana Forensics unknown 35 405
251. Post office 2 Programming Flame 35 405
252. Show your skills Pwn Superior 35 405
253. Ghost in the Cybergrid Reverse Engineering Bekkaze 35 405
254. Brain teaser Steganography Uzi 35 405
255. Mewo time Web Flame 35 405
256. Pug Maestro Web unknown 35 405
257. New crypto Cryptography Ds3c 36 370
258. Seed of future Cryptography unknown 36 370
259. de_chunk Forensics fg0x0 36 370
260. Stegno Forensics Dudu 36 370
261. Ubuntu Web unknown 36 370
262. roxy-1 Cryptography unknown 37 334
263. Warmup 2024 Cryptography unknown 37 334
264. pb!n Miscellaneous unknown 37 334
265. License key Reverse Engineering unknown 37 334
266. Find Steganography unknown 37 334
267. Holy Letter Cryptography zjzoloo 38 297
268. Same OR ? Forensics dorjoos 38 297
269. Өндөр чинь хэд вэ Forensics unknown 38 297
270. Puzzle Miscellaneous unknown 38 297
271. Dig Reverse Engineering unknown 38 297
272. Reversing is fun Reverse Engineering unknown 38 297
273. United airlines Reverse Engineering unknown 38 297
274. Cybercook Cryptography Uzi 39 259
275. pcap forensic 100 Forensics unknown 39 259
276. Random images Forensics unknown 39 259
277. Untrustworthy filtering Web unknown 39 259
278. Newsletter - qik OSINT unknown 40 220
279. Hunt begins Reverse Engineering unknown 40 220
280. Seeder Reverse Engineering ByamB4 40 220
281. Эрээн алаг Steganography unknown 40 220
282. Damage Checker Web uug4na 40 220
283. Checker Cryptography unknown 41 180
284. Scan me Cryptography unknown 41 180
285. Batman Forensics unknown 41 180
286. Log Miscellaneous Uzi 41 180
287. Alphabet Cryptography unknown 42 139
288. Ticket Generator Cryptography Bilgee 42 139
289. Splitted Forensics unknown 42 139
290. Fruit Reverse Engineering Ds3c 42 139
291. Grown Up SSRF Web uug4na 42 139
292. The Voice of Dota 2 Miscellaneous fg0x0 43 97
293. Call me Pwn reamb 43 97
294. Crypto analysis Cryptography unknown 44 54
295. Arithmetic expression Web unknown 44 54
296. Art of Bruteforce Forensics unknown 45 10
297. String Forensics Ds3c 45 10
298. Тасархай файл Forensics Superior 45 10
299. Who is your daddy? Miscellaneous unknown 45 10
300. Bof Pwn myagmartseren 45 10
301. Inside Reverse Engineering n01c3 45 10
302. Stay consistent Web unknown 45 10
303. websploit1 Web unknown 45 10
304. websploit2 Web unknown 45 10
305. Modular encryption Cryptography Tulgaaaa 46 10
306. Edit me Forensics Ds3c 46 10
307. Magic bytes Forensics unknown 46 10
308. TOP SECRET Forensics dorjoos 46 10
309. Qu1ck Miscellaneous Uzi 46 10
310. Lazy boy Reverse Engineering ByamB4 46 10
311. py Reverse Engineering reamb 46 10
312. Magic Steganography Uzi 46 10
313. Sub Zero Steganography unknown 46 10
314. The First Half Cryptography Superior 47 10
315. warmup Forensics w01f 47 10
316. Могой Reverse Engineering unknown 47 10
317. Decrypt me: 6 Cryptography unknown 48 10
318. Number2Text Cryptography unknown 48 10
319. Claim your golden tickets Forensics unknown 48 10
320. Har tsagaan honi Miscellaneous zjzoloo 48 10
321. string Reverse Engineering unknown 48 10
322. XOR without X Cryptography Superior 49 10
323. Box in the box Forensics unknown 49 10
324. 4r3 Y0u Bl1nd Cryptography Uzi 50 10
325. RSA tutorial Cryptography Superior 50 10
326. Унш унш бас дахин унш Cryptography unknown 50 10
327. Галуун цуваа Programming unknown 50 10
328. Execution redirect Reverse Engineering unknown 50 10
329. Nightfall Cryptography unknown 51 10
330. unknown key but known Cryptography Tulgaaaa 51 10
331. Cheater: Flag 2 Forensics Xyptonize 51 10
332. Yours Forensics unknown 51 10
333. Толгой 2025 Forensics dorjoos 51 10
334. Back To The Past OSINT Uzi 51 10
335. Logmein3 Web reamb 51 10
336. dlugi Cryptography unknown 52 10
337. md5 Forensics reamb 52 10
338. Netflix Miscellaneous unknown 52 10
339. Геометр Programming unknown 52 10
340. A lot of technique Reverse Engineering T6X3G 52 10
341. Ходоод Reverse Engineering unknown 52 10
342. 1337 Web fg0x0 52 10
343. Муур багш Forensics unknown 53 10
344. Learning Reverse Engineering ByamB4 53 10
345. PIN PON Web dorjoos 53 10
346. Onion flag Forensics unknown 54 10
347. Really Suspicious Algorithm Cryptography Superior 55 10
348. Smartdoor Reverse Engineering Bekkaze 55 10
349. Advanced Encryption Standard Cryptography Superior 56 10
350. Dance Dance Dance Cryptography unknown 56 10
351. Sainuu Forensics unknown 56 10
352. Post office 1 Programming Flame 56 10
353. Registration Pwn Superior 56 10
354. Perfect Nature Gallery Forensics olsujabu 57 10
355. Shredder Miscellaneous unknown 57 10
356. Complete random key Cryptography Superior 58 10
357. xo | rorororo Cryptography w01f 58 10
358. Hacker_Kid Forensics unknown 58 10
359. Spike Reverse Engineering unknown 58 10
360. Бие халаалт Cryptography Superior 59 10
361. Message to you Forensics unknown 60 10
362. My Customers Web unknown 60 10
363. Storm Forensics unknown 61 10
364. 1 ⊕ 1 = 0 Miscellaneous Uzi 61 10
365. Human Or Orc Steganography unknown 61 10
366. Obfuscated Arga ys Forensics reamb 62 10
367. Can you see Steganography uug4na 62 10
368. CS2 Weapons Database Web uug4na 62 10
369. Crypto Sensei Cryptography unknown 63 10
370. Decode me: 2 Cryptography unknown 63 10
371. Decode pls Reverse Engineering unknown 63 10
372. Найраа 2 Web reamb 63 10
373. Alice and Bob Part 2 Cryptography Ds3c 64 10
374. Юлий Цезарийн төгсгөл Cryptography w01f 64 10
375. Blueteeth Forensics unknown 64 10
376. java Reverse Engineering reamb 64 10
377. Warmup 2019 Web unknown 64 10
378. Шийр Web unknown 64 10
379. sumPrimes Cryptography Tulgaaaa 66 10
380. 中文余数 Cryptography Tulgaaaa 66 10
381. Chopper Steganography unknown 67 10
382. Baby crypto Cryptography Flame 68 10
383. GOT.jpg Forensics unknown 68 10
384. Pymoji Miscellaneous Khangal 68 10
385. Morse Cryptography unknown 69 10
386. Professor Forensics unknown 69 10
387. Orb Web fg0x0 69 10
388. Рийл крипто Cryptography w01f 70 10
389. QR Miscellaneous unknown 70 10
390. Goofyshit Miscellaneous Uzi 71 10
391. Толь бичиг Reverse Engineering Bilgee 71 10
392. Web Encryption Web dorjoos 71 10
393. Babe sql Web dorjoos 73 10
394. Compose Your Flag: Flag 1 Reverse Engineering Flame 74 10
395. Decrypt me: 7 Cryptography unknown 75 10
396. Зургийг нээхэд хүссэн зүйл чинь байгаа Forensics unknown 76 10
397. Bipolar Forensics n01c3 77 10
398. Oold ikon OSINT unknown 77 10
399. Real Hacker Forensics unknown 78 10
400. WarmUP 2025 Forensics dorjoos 78 10
401. No Brain? Miscellaneous unknown 79 10
402. Dub or sub? Forensics Flame 80 10
403. Ping 2 Web Bekkaze 81 10
404. Decrypt me: 2 Cryptography unknown 82 10
405. Дэлгүүр хэсэх үү? Pwn Bilgee 82 10
406. Cookbook Cryptography unknown 85 10
407. Миний хэнз флаг Miscellaneous Superior 87 10
408. 1_26 Cryptography unknown 88 10
409. 2D Cryptography unknown 88 10
410. Decrypt me: 8 Cryptography unknown 88 10
411. We Will Rock You Forensics reamb 89 10
412. can you see it Forensics reamb 91 10
413. Certification Cryptography Uzi 92 10
414. Easy forensic 1 Forensics unknown 92 10
415. Unsecure protocol Forensics unknown 92 10
416. EZ Steganography unknown 93 10
417. Найраа Web unknown 93 10
418. Chop and change Web unknown 94 10
419. Master Yoda Web unknown 95 10
420. Ping 1 Web Bekkaze 96 10
421. Baby Web Web w01f 97 10
422. Simple Puzzle Cryptography unknown 99 10
423. Wakanda үүрд Cryptography Bilgee 99 10
424. Decode me: 8 Cryptography unknown 103 10
425. Flag giveaway Web Superior 103 10
426. Logmein2 Web reamb 103 10
427. Easy RSA Cryptography Xyptonize 105 10
428. Нууц зурвас Cryptography Superior 105 10
429. Library Web uug4na 107 10
430. Чанасан толгой Web Flame 108 10
431. 13-р зуун 2018 Cryptography Ds3c 111 10
432. Шүлэг Cryptography now.sh 113 10
433. Cave Web uug4na 114 10
434. Матрёшка Forensics Flame 115 10
435. Old but gold Cryptography unknown 117 10
436. Чухал биш битүүд Steganography Superior 121 10
437. RGB Plane Forensics Uzi 124 10
438. Decode me: 9 Cryptography unknown 125 10
439. Shiree Cryptography olsujabu 142 10
440. Decrypt me: 5 Cryptography unknown 144 10
441. Cheater: Flag 1 Forensics Xyptonize 145 10
442. Weak password Web unknown 154 10
443. Stupid JS Steganography reamb 155 10
444. Prime Programming Ds3c 158 10
445. Ромын байлдан дагуулагч Cryptography unknown 160 10
446. Бие халаалт 2018 Cryptography Ds3c 171 10
447. 13-р зуун Cryptography unknown 173 10
448. Decode me: 5 Cryptography unknown 175 10
449. zipper Forensics ByamB4 175 10
450. Decode me: 4 Cryptography unknown 178 10
451. roshan's banner Cryptography Tulgaaaa 181 10
452. Decrypt me: 1 Cryptography unknown 187 10
453. GG Miscellaneous unknown 189 10
454. Decode me: 3 Cryptography unknown 193 10
455. Decode me: 1 Cryptography unknown 212 10
456. Emojis Cryptography Uzi 222 10
457. Цэцэгхээн Forensics olsujabu 231 10
458. Smells like 10 Spirit Cryptography unknown 239 10
459. Logmein1 Web reamb 256 10
460. First blood Cryptography Flame 268 10