Virus auf USB-Stick (iexplorer.exe) - auch auf dem Laptop?

ESETSmartInstaller@High as downloader log:
all ok
# version=7
# OnlineScannerApp.exe=1.0.0.1
# OnlineScanner.ocx=1.0.0.6583
# api_version=3.0.2
# EOSSerial=73f9779323df524f8a13cc0805f2606b
# end=finished
# remove_checked=false
# archives_checked=false
# unwanted_checked=true
# unsafe_checked=false
# antistealth_checked=true
# utc_time=2011-12-02 05:56:05
# local_time=2011-12-02 06:56:05 (+0100, Mitteleuropäische Zeit)
# country="Germany"
# lang=1033
# osver=6.0.6002 NT Service Pack 2
# compatibility_mode=1792 16777215 100 0 4001511 4001511 0 0
# compatibility_mode=5892 16776573 100 100 14585 160375824 0 0
# compatibility_mode=8192 67108863 100 0 3742 3742 0 0
# scanned=259707
# found=1
# cleaned=0
# scan_time=5469
D:\downloads\setups\SoftonicDownloader_fuer_goodnight-timer.exe	a variant of Win32/SoftonicDownloader.A application (unable to clean)	00000000000000000000000000000000	I
ESETSmartInstaller@High as downloader log:
all ok
# version=7
# OnlineScannerApp.exe=1.0.0.1
# OnlineScanner.ocx=1.0.0.6583
# api_version=3.0.2
# EOSSerial=73f9779323df524f8a13cc0805f2606b
# end=stopped
# remove_checked=false
# archives_checked=false
# unwanted_checked=true
# unsafe_checked=false
# antistealth_checked=true
# utc_time=2011-12-07 09:40:43
# local_time=2011-12-07 10:40:43 (+0100, Mitteleuropäische Zeit)
# country="Germany"
# lang=1033
# osver=6.0.6002 NT Service Pack 2
# compatibility_mode=1792 16777215 100 0 4446084 4446084 0 0
# compatibility_mode=5892 16776573 100 100 27034 160820397 0 0
# compatibility_mode=8192 67108863 100 0 448315 448315 0 0
# scanned=242964
# found=1
# cleaned=0
# scan_time=6373
D:\downloads\setups\SoftonicDownloader_fuer_goodnight-timer.exe	a variant of Win32/SoftonicDownloader.A application (unable to clean)	00000000000000000000000000000000	I