ThreatExpert's Statistics for TrojanDownloader:Win32/Cutwail.AG [Microsoft]:

TrojanDownloader:Win32/Cutwail.AG [Microsoft] is also known as:

Threat Alias	Number of Incidents
Trojan.Win32.Agentb.b [Kaspersky Lab]	2
Mal/Generic-A [Sophos]	1
Troj/DwnLdr-HMT [Sophos]	1

TrojanDownloader:Win32/Cutwail.AG [Microsoft] is known to be created as:

%System%\reader_s.exe

%System%\rs32net.exe

%UserProfile%\reader_s.exe

Notes:

%System% is a variable that refers to the System folder. By default, this is C:\Windows\System (Windows 95/98/Me), C:\Winnt\System32 (Windows NT/2000), or C:\Windows\System32 (Windows XP).
%UserProfile% is a variable that specifies the current user's profile folder. By default, this is C:\Documents and Settings\[UserName] (Windows NT/2000/XP).