80000032.@ trojan.gen 2 and 80000000.@ hacktool.rootkit being blocked

I'm facing the same problem.

Full Path: c:\windows\installer\{1ed088c4-7d56-2876-f965-39d4548174a6}\u\80000000.@
Threat: Trojan.Gen.2
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On computers as of 6/3/2012 at 2:05:27 PM
Last Used 6/3/2012 at 2:05:27 PM
Startup Item No
Launched No
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Unknown
Number of users in the Norton Community that have used this file: Unknown
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Unknown
This file release is currently not known.
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High
This file risk is high.
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Threat Details
Threat type: Virus. Programs that infect other programs, files, or areas of a computer by inserting themselves or attaching themselves to that medium.
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File Actions
File: c:\windows\installer\{1ed088c4-7d56-2876-f965-39d4548174a6}\u\80000000.@
Blocked
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File Thumbprint - SHA:
af47fc350c1902b94ab0b2ea8bba4daa8350e5e1d5fb61ff2f271612e511d4ae
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File Thumbprint - MD5:
1bf005160d6c0469601128d75e8a0044
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[edit: Clarified subject.]