XPACK.A_1451 is a Trojan. A Trojan is a program that pretends to have a valid use, but in fact modifies the user's computer in malicious ways. Trojans do not replicate or spread to other computers.
File Related Changes
It drops the following file(s) on the system:
- "C:\RECYCLER\S-1-5-21-1078081533-842925246-854245398-1003\f85797bb4342d4c2f184eeef6e94c112\n"
- "C:\RECYCLER\S-1-5-18\f85797bb4342d4c2f184eeef6e94c112\n"
- "C:\WINDOWS\assembly\GAC"
Process Related Changes
It creates the following mutex(es):
It creates the following process(es): - C:\WINDOWS\system32\cmd.exe
- C:\WINDOWS\Temp\761d5452305218919182f58cdae23bde.exe [ \c:\windows\temp\761d5452305218919182f58cdae23bde.exe ]
It injects malicious code into the following process(es): - "C:\WINDOWS\system32\services.exe"
- "C:\WINDOWS\explorer.exe"
- "C:\WINDOWS\system32\cmd.exe"
Network Activity
We observed the following DNS query/queries:
It attempts to connect to the following remote servers: - 213.108xxxxxx:80
- 208.91xxxxxx:80
Registry Related Changes
It makes the following registry modifications to ensure infection after system reboot: - HKLM\software\microsoft\windowsnt\currentversion\drivers32\= mswsock.dll
- HKLM\system\CurrentControlSet\Services\wscsvc\enum\= l
- HKLM\system\CurrentControlSet\Services\winsock2\parameters\protocolcatalog9\catalogentries\000000000009\= l
- HKLM\system\CurrentControlSet\Services\winsock2\parameters\protocolcatalog9\catalogentries\000000000004\= l
- HKLM\system\CurrentControlSet\Services\winsock2\parameters\namespacecatalog5\catalogentries\000000000003\= mswsock.dll
- HKLM\system\CurrentControlSet\Services\winsock2\parameters\namespacecatalog5\catalogentries\000000000001\= mswsock.dll
- HKLM\system\CurrentControlSet\Services\winsock2\parameters\protocolcatalog9\catalogentries\000000000004\= mswsock.dll
- HKLM\system\CurrentControlSet\Services\winsock2\parameters\protocolcatalog9\catalogentries\000000000005\= l
- HKLM\software\microsoft\windowsnt\currentversion\drivers32\= _Special_Characters_
- HKLM\system\CurrentControlSet\Services\wscsvc\enum\= mswsock.dll
- HKLM\system\CurrentControlSet\Services\wscsvc\enum\= _Special_Characters_
- HKLM\system\CurrentControlSet\Services\winsock2\parameters\protocolcatalog9\catalogentries\000000000006\= l
- HKLM\system\CurrentControlSet\Services\winsock2\parameters\protocolcatalog9\catalogentries\000000000011\= l
- HKLM\system\CurrentControlSet\Services\winsock2\parameters\protocolcatalog9\catalogentries\000000000008\= l
- HKLM\system\CurrentControlSet\Services\winsock2\parameters\protocolcatalog9\catalogentries\000000000010\= l
- HKLM\system\CurrentControlSet\Services\winsock2\parameters\protocolcatalog9\catalogentries\000000000002\= mswsock.dll
- HKLM\system\CurrentControlSet\Services\winsock2\parameters\namespacecatalog5\catalogentries\000000000001\= l
- HKLM\software\microsoft\windowsnt\currentversion\drivers32\= l
- HKLM\system\CurrentControlSet\Services\winsock2\parameters\protocolcatalog9\catalogentries\000000000003\= mswsock.dll
- HKLM\system\CurrentControlSet\Services\= mswsock.dll
- HKLM\system\CurrentControlSet\Services\winsock2\parameters\protocolcatalog9\catalogentries\000000000001\= mswsock.dll
- HKLM\system\CurrentControlSet\Services\winsock2\parameters\namespacecatalog5\catalogentries\000000000003\= l
- HKLM\system\CurrentControlSet\Services\winsock2\parameters\protocolcatalog9\catalogentries\000000000001\= l
- HKLM\system\CurrentControlSet\Services\= l
- HKLM\system\CurrentControlSet\Services\= _Special_Characters_
- HKLM\system\CurrentControlSet\Services\winsock2\parameters\protocolcatalog9\catalogentries\000000000007\= l
- HKLM\system\CurrentControlSet\Services\winsock2\parameters\protocolcatalog9\catalogentries\000000000002\= l
- HKLM\system\CurrentControlSet\Services\winsock2\parameters\protocolcatalog9\catalogentries\000000000003\= l
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