BNETDocs
C>S 0x17 SID_READMEMORY
Message Id:0x17
Message Name:SID_READMEMORY
Direction:Client to Server
Used By:Diablo Retail, Diablo Shareware
Starcraft Japanese, Starcraft Broodwar
Starcraft Shareware, Starcraft Original
Warcraft II BNE
Format:

(UINT32) Request ID
(VOID) Memory

Remarks

Rudimentary hack detection system. Was never used probably due to terrible implementation with little security.

Yes, it is possible for a PvPGN server to read EVERYTHING that is in the process' memory, including sensitive information such as your CDKey.

Found at: battle!1901D470h (as of 1.16.1)

Comments
xpeh

It's not defunct.

RealityRipple

You have logs of its use?

xpeh

Battle.Net clients still support it. So it can be used with Battle.Net emulators, or if someone uses man in the middle.