Flash is old but still usable. Flash is very old but still usable. Few year ago I was sure that this product be killed by WebGL or other modern technology. Now Flash is alive and very popular for some application. Flash contains not only sprites and images , actionscript code is also included in swf file. By running this code flsdh has ability to work with user control and send command via network. Start JPEXS Free Decompiler and open previous downloaded swf file. Navigate to script section: Unfortunately my Imac has problem with text searhing(searching is stopped with 'out of memory' error). In this case I'm looking for potential file using personal meaning. File which has "sign-code" reference is placed at next path: scripts-> model-> logic->server->commands->JsonCallCmd Function name is call() and contain another one fuction generateRequestSignature(data,paramText...