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[Kaspersky Lab] [McAfee] [Sophos] [Ikarus] [AhnLab]| What's been found | Severity Level |
| Creates a startup registry entry. |  |
| There were some system executable files modified, which might indicate the presence of a PE-file infector. |  |
| Contains characteristics of an identified security risk. |  |
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 | Possible Security Risk |
| Security Risk | Description |
| Backdoor.Bifrose |
Backdoor.Bifrose is a backdoor trojan that attempts to propagate by exploiting local network shares. It will also attempt to join a predefined IRC server and channel in order to participate in DDoS attacks. |
| Backdoor.Optix |
Backdoor.Optix is a backdoor Trojan program which opens ports on the infected computer and allows the attackers to gain unauthorized access to the system. |
| Threat Category | Description |
 |
A virus capable to modify other files by infecting, prepending, or overwriting them them with its own body |
 |
A malicious backdoor trojan that runs in the background and allows remote access to the compromised system |
 | File System Modifications |
| # | Filename(s) | File Size | File Hash | Alias |
| 1 | %AppData%\addon.dat | 25,254 bytes | MD5: 0x3118E11522E21E5DAAAC51611D51DA90 SHA-1: 0x6B9D9CB029E4598E3967249C33C7C2EC55131373 |
(not available) |
| 2 |
%AppData%\Bifrost\klog.dat
%System%\Bifrost\klog.dat |
0 bytes | MD5: 0xD41D8CD98F00B204E9800998ECF8427E SHA-1: 0xDA39A3EE5E6B4B0D3255BFEF95601890AFD80709 |
(not available) |
| 3 |
%AppData%\Bifrost\server.exe
c:\Extracted\Nashy.exe %System%\Bifrost\server.exe
|
84,871 bytes | MD5: 0x449ABADFCE3792E49B72C7D3C97AA8E0 SHA-1: 0xFD4DA097709300122A214114CB7E7AC0DCA31105 |
Backdoor.Bifrose [Symantec] Virus.Win32.Virut.ce [Kaspersky Lab]W32/Virut.n.gen [McAfee]W32/Scribble-B [Sophos]Virus.Win32.Bifrose [Ikarus] |
| 4 |
%Temp%\00017E24_Rar\[filename of the sample #1]
%Temp%\00017EA1_Rar\[filename of the sample #1] %Temp%\00032125_Rar\[filename of the sample #1] %Temp%\00032145_Rar\[filename of the sample #1] %Temp%\000323C5_Rar\[filename of the sample #1] %Temp%\000324FE_Rar\[filename of the sample #1] [file and pathname of the sample #1] |
305,426 bytes | MD5: 0x41B4ECE520E0DE1B64D051D4AB52EF7B SHA-1: 0x6CD5FFFA2D5927E68B0239CAED08E69FE0BA09D7 |
Virus.Win32.Sality.aa [Kaspersky Lab] W32/Sality.gen.b [McAfee]W32/Sality-AM [Sophos]Virus.Win32.Sality [Ikarus]Win-Trojan/Buzus.98304.X [AhnLab] |
| 5 |
c:\Extracted\MPS-15-SE.exe
|
130,560 bytes | MD5: 0x5DC3321D633DCBA6B26828C2772F4A9C SHA-1: 0xC57285C084546A7CD387AF7FCFB9BFEA3ADFAB37 |
W32.Virut.CF [Symantec] Virus.Win32.Virut.ce [Kaspersky Lab]W32/Virut.n.gen [McAfee]W32/Scribble-B [Sophos]Trojan-Dropper.Delf [Ikarus] |
 | Memory Modifications |
| Process Name | Process Filename | Main Module Size |
| server.exe | %System%\Bifrost\server.exe | 63,840 bytes |
| [filename of the sample #1] | [file and pathname of the sample #1] | 163,840 bytes |
| MPS-15-SE.exe | C:\Extracted\MPS-15-SE.exe | 241,664 bytes |
| Nashy.exe | C:\Extracted\Nashy.exe | 63,840 bytes |
| [filename of the sample #1] | %Temp%\00017ea1_rar\[filename of the sample #1] | 163,840 bytes |
 | Registry Modifications |
 | Other details |
 |
Croatia |
 |
Iran |
| Remote Host | Port Number |
| aaaaaaaaaaa1234.no-ip.biz | 81 |
| rxgioz.com | 443 |
| 60.190.222.139 | 80 |
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