Submission Summary:

What's been foundSeverity Level
Produces outbound traffic.
Contains characteristics of an identified security risk.


Technical Details:


Possible Security Risk

Threat CategoryDescription
A malicious trojan horse or bot that may represent security risk for the compromised system and/or its network environment
A virus capable to modify other files by infecting, prepending, or overwriting them them with its own body


File System Modifications

#Filename(s)File SizeFile HashAlias
1 %Programs%\Startup\maswtjoy.exe
[part of the sample filename]1mgr.exe
108,032 bytes MD5: 0xDFB5DAABB95DCFAD1A5FAF9AB1437076
SHA-1: 0x4A199569A9B52911BEE7FB19AB80570CC5FF9ED1
Trojan.Gen.2 [Symantec]
Trojan.Win32.Pakes.tyi [Kaspersky Lab]
Generic BackDoor.ya [McAfee]
W32/Ramnit-A [Sophos]
Trojan:Win32/Ramnit.A [Microsoft]
Trojan-Ransom.Win32.PornoBlocker [Ikarus]
2 %ProgramFiles%\Internet Explorer\dmlconf.dat 16 bytes MD5: 0x4AE71336E44BF9BF79D2752E234818A5
SHA-1: 0xE129F27C5103BC5CC44BCDF0A15E160D445066FF
(not available)
3 %System%\nannaa.exe
[file and pathname of the sample #1]
137,560 bytes MD5: 0xCD35072E029F76946B263B2987EAA9DB
SHA-1: 0x230C8E9243F8455D5DF2332C3A29241FED71F872
W32.Ramnit.B!inf [Symantec]
Virus.Win32.Nimnul.a [Kaspersky Lab]
W32/Ramnit.a [McAfee]
W32/Ramnit-A [Sophos]
Virus:Win32/Ramnit.J [Microsoft]
Virus.Win32.Ramnit [Ikarus]


Memory Modifications

Process NameProcess FilenameMain Module Size
nannaa.exe%System%\nannaa.exe147,456 bytes
[filename of the sample #1][file and pathname of the sample #1]147,456 bytes
nannaamgr.exe%System%\nannaamgr.exe139,264 bytes


Registry Modifications


Other details

Remote HostPort Number


Outbound traffic (potentially malicious)



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