IRC clue 1

INCOMING TRANSMISSION - UNKNOWN SOURCE Dr BonAmi is Not ami its KONami Code. Dr HORN Don't LET HIM find us. Dr Welsh

Discovery/Decryption
On September 20, 2012, shortly after starting an IRC channel for discussing the ARG, a strange taunt was left for our users, suspected at first to just be someone trolling. [01:51] * Dr_Horn (webchat@host-84-9-123-89.dslgb.com) has joined channel #BMS-ARG [01:51]  hello Dr Horn..... [01:51]  The Pizza Is A LIE [01:52] * Dr_Horn (webchat@host-84-9-123-89.dslgb.com) Quit (Quit: Page closed)

Later on a user with the same host company signed back in and left a cryptic code [03:40]  UHJveHlob3N0QC04NC05LTEyMy0xNjQuZHNsZ2IuY29tLy9jbG 9zZWQucHJveHkuYWNjZXB0ZWQvLz9PVFIsMSwzLD9PVFI6W0kt LS1NSS1HIFRSLS1TTUktLS1PT－iAtIFVOLS0tV04gUyMjUkNFX SBPVFI6ficvLyBEci8vLyN+YCAgQi4uQW1pIH4jIyMgfiBOb3Q gIyN+YW1pLi4uIHtpbnRlcnJ1cHR9CgorKiYqJiMvLyMvLyBLT 0 4gICwsLW1pIEMtZGUuIERyIEgtLU4gI35+IERvbl9fIyMjIExF VCBISU0gX18gZmkjZC4uLi4udXMgLiB7RHIgV2VsIyN9fn4gW1 Rlcm1pbmFsLl0gfn4gW1RyYW5z bWlzc2lvbiBFbmRzXQ== [03:41]  UHJveHlob3N0QC04NC05LTEyMy0xNjQuZHNsZ2IuY29tLy9jbG 9zZWQucHJveHkuYWNjZXB0ZWQvLz9PVFIsMSwzLD9PVFI6W0kt LS1NSS1HIFRSLS1TTUktLS1PT－iAtIFVOLS0tV04gUyMjUkNFX SBPVFI6ficvLyBEci8vLyN+YCAgQi4uQW1pIH4jIyMgfiBOb3Q gIyN+YW1pLi4uIHtpbnRlcnJ1cHR9CgorKiYqJiMvLyMvLyBLT 0 4gICwsLW1pIEMtZGUuIERyIEgtLU4gI35+IERvbl9fIyMjIExF VCBISU0gX18gZmkjZC4uLi4udXMgLiB7RHIgV2VsIyN9fn4gW1 Rlcm1pbmFsLl0gfn4gW1RyYW5z bWlzc2lvbiBFbmRzXQ== [03:41]  UHJveHlob3N0QC04NC05LTEyMy0xNjQuZHNsZ2IuY29tLy9jbG 9zZWQucHJveHkuYWNjZXB0ZWQvLz9PVFIsMSwzLD9PVFI6W0kt LS1NSS1HIFRSLS1TTUktLS1PT－iAtIFVOLS0tV04gUyMjUkNFX SBPVFI6ficvLyBEci8vLyN+YCAgQi4uQW1pIH4jIyMgfiBOb3Q gIyN+YW1pLi4uIHtpbnRlcnJ1cHR9CgorKiYqJiMvLyMvLyBLT 0 4gICwsLW1pIEMtZGUuIERyIEgtLU4gI35+IERvbl9fIyMjIExF VCBISU0gX18gZmkjZC4uLi4udXMgLiB7RHIgV2VsIyN9fn4gW1 Rlcm1pbmFsLl0gfn4gW1RyYW5z bWlzc2lvbiBFbmRzXQ== [03:41] * Watcher__|afk (webchat@host-84-9-123-164.dslgb.com) Quit (Quit: Page closed)

user asm realized the message used base64 encoding and decoded the message. Proxyhost@-84-9-123-164.dslgb.com//closed.proxy.accepted//?OTR,1,3,?OTR:[I---MI-G TR--SMI---ON - UN---WN S##RCE] OTR:~'// Dr///#~` B..Ami ~### ~ Not ##~ami... {interrupt} +*&*&#//#// KON ,,-mi C-de. Dr H--N # Don__### LET HIM __ fi#d.....us. {Dr Wel##} [Terminal.] [Transmission Ends]

SOLUTION

 * This clue led us to trying the Konami code on Chris 'Stormseeker' Horn's homepage which led us to the terminal.blackmesasource.com page