AntiVir, Tor Browser Bundle, and trojan Dropper.Gen false positive
A number of people are reporting that AntiVir's latest update is reporting trojan Dropper.Gen in the Tor Browser Bundle version 1.1.11, specifically the "Start Tor Browser.exe" program.
This appears to be a false positive from AntiVir. No one has confirmed they've checked the pgp signature with their download of TBB. You may want to confirm you've actually downloaded our package, https://www.torproject.org/verifying-signatures.
False positives occurs often enough we have a FAQ entry about it, https://www.torproject.org/faq#VirusFalsePositives
You can read more about the trojan at http://www.avira.ro/en/threats/section/details/id_vir/3647/tr_dropper.ge...
I'm building a VM to specifically test this AntiVir version against Start Tor Browser.exe to see what inside the executable is triggering the false positive.