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What's been found | Severity Level |
Capability to block security-related software by modifying firewall settings and by disabling security services, such as Windows Update, Norton Autoprotect, Kaspersky Anti-Virus, etc. | ![]() |
Produces outbound traffic. | ![]() |
There were some system executable files modified, which might indicate the presence of a PE-file infector. | ![]() |
Contains characteristics of an identified security risk. | ![]() |
![]() | Possible Security Risk |
Threat Category | Description |
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A virus capable to modify other files by infecting, prepending, or overwriting them them with its own body |
![]() | File System Modifications |
# | Filename(s) | File Size | File Hash | Alias |
1 |
%System%\nannaa.exe
[file and pathname of the sample #1] |
180,224 bytes | MD5: 0x6D3B810632D77EAF0863E4AC303BB47E SHA-1: 0x83C966D34DC046F52220379AC0F3546DE8E490BD |
W32.Ramnit!inf [Symantec] Virus.Win32.Nimnul.a [Kaspersky Lab] W32/Ramnit.a [McAfee] W32/Patched-I [Sophos] Virus:Win32/Ramnit.A [Microsoft] Win32.SuspectCrc ![]() Win32/Ramnit.B [AhnLab] |
2 |
%System%\nannaaSrv.exe
[part of the sample filename]1Srv.exe |
85,713 bytes | MD5: 0xC5C99988728C550282AE76270B649EA1 SHA-1: 0x113E8FF0910F393A41D5E63D43EC3653984C63D6 |
W32.Virut.CF![]() Packed.Win32.Krap.hm [Kaspersky Lab] PWS-Zbot.gen.pq [McAfee] Mal/Agent-IE [Sophos] Virus.Win32.Virut ![]() |
![]() | Memory Modifications |
Process Name | Process Filename | Main Module Size |
nannaa.exe | %System%\nannaa.exe | 188,416 bytes |
nannaaSrv.exe | %System%\nannaaSrv.exe | 77,824 bytes |
[filename of the sample #1] | [file and pathname of the sample #1] | 188,416 bytes |
Service Name | Display Name | Status | Service Filename |
WinHelp32 | Windows Help System | "Running" | %System%\nannaa.exe |
![]() | Registry Modifications |
![]() | Other details |
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China |
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Russian Federation |
Port | Protocol | Process |
1035 | TCP | nannaa.exe (%System%\nannaa.exe) |
Remote Host | Port Number |
157.52.160.68 | 8000 |
exevlw.com | 443 |
83.133.119.197 | 80 |
![]() | Outbound traffic (potentially malicious) |
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