FWIW, I tried uploading to virustotal and got:
http://www.virustotal.com/file-scan/report.html?id=827157798b9ee33c0becc67fa7cc606a33bb7b8f038070fe6253d5046b371937-1306287846
In the case of Sophos, the result listed in red was "NirCmd" -- which I guess happens to be included in LBC's zip file.
The following is from
a NirSoft FAQ list:
Q: The antivirus software on my computer reports that some of the your utilities are infected with a virus or trojan. What should I do ?
A: First of all, All the utilities in my Web site are clean, and they don't contain any virus or trojan. Unfortunately, Antivirus programs are not perfect, and in many times they detects innocent software as infected with trojan or virus. This problem is known as 'False Positive' or 'False Alert', and it's quite common in password-recovery tools. If your antivirus software reports that utilities you downloaded from this Web site are infected with a virus or trojan, I highly recommend you to contact your antivirus company and ask them to fix this 'False Positive' problem in the next update of your antivirus software. You can also contact NirSoft to report about 'False Positive' problems. Click here to view the latest 'False Positive' problems reported by users from around the world.
In the case of VIPRE, I saw:
VIPRE 9381 2011.05.25 Trojan.Win32.Generic!BT
FWIW, the MD5 and SHA1 checksums of the file uploaded (requested a re-analysis) were:
MD5 : 9cb3a38088807f54e7f89ac30e09c030
SHA1 : d3578d56c6ec1c23179520a01309a79ccb38324b