Gibin John shared his article “Interesting APIs For Malware Hunter…”. Windows program use Windows API. So malware for Windows use specific APIs for their work.
John separated APIs for categories. Such as: KEYSTROKES Loggers, NETWORK TRAFFIC MONITOR, DOWNLOADER, HTTP CNC TRAFFIC, DROPPERS, DLL Injection FUCTION calls, API HOOKING, etc.
The article can be help a reverse engineer for malware investigating.