https://msdn.microsoft.com/en-us/library/windows/desktop/dd757669(v=vs.85).aspx


<vulture> AverageJ0e: I doubt it, digital signatures werent a thing when acm was invented. you can just regsvr32 it like anything else. you probably need to be admin to run regsvr32 though?
<AverageJ0e> yeah
<AverageJ0e> im gonna include it in my talk
<AverageJ0e> for shiggles
<vulture> you using it for a backdoor or something?
<vulture>   wf->wFormatTag = WAVE_FORMAT_MPEGLAYER3;      i = acmFormatSuggest(0, wf, wfout, 1024, ACM_FORMATSUGGESTF_WFORMATTAG);      i = acmStreamOpen(&acm, 0, wf, wfout, 0, 0, 0, ACM_STREAMOPENF_NONREALTIME);
<AverageJ0e> how astute
<vulture> that's how I use it
<vulture> not sure if backdoorable if I explicitly specify format tag
<vulture> but maybe on a .wav file or something you could put your own formattag in there
<AverageJ0e> i want the backdoor to run when an mp3 file is played
<vulture> and then 'play' the .wav with some elevated/alternate credentialed account
<vulture> ah
<vulture> yeah I think there's a priority number too
<vulture> that chooses which codec gets loaded for a particular formattag
<vulture> g-spot shows you that anyway, though I'm not sure if that's acm or dshow that does it
* slither has quit (Ping timeout: 265 seconds)
<vulture> Rotab knows all about the g-spot


in
D:\WinDDK\7600.16385.1\src\mmedia\msfilter


http://flocke.vssd.de/prog/apps/pascal/mp3conv/cur/MMReg.pas.html

https://msdn.microsoft.com/en-us/library/ms894065.aspx
https://msdn.microsoft.com/en-us/library/windows/desktop/dd373410(v=vs.85).aspx
http://www.rarewares.org/mp3-lame-dshow-acm.php
https://www.google.com/search?q=codec+coding+acm&ie=utf-8&oe=utf-8#q=codec+writing+acm