A reader pointed out that "backdoor.hackdefender" was rather popular at virustotal. Looking at the top 10, it shows that most of the top 10 are backdoors.
Perhaps time to make a mental note that although backdoors typically don't have fast rates to spread they do seem to be widely available in the wild.
Add to that that cleaning up from a backdoor is tricky business: what else was installed/changed/... while the backdoor was installed ? Typical viruses are much more predictable and therefore easier to clean up.
As such it might be a good moment to check the risk levels of backdoors in your organization and perhaps take some more measures.
Let me know what you think about it. If you do have extra measures in addition to the typical anti-virus measures to counter the threat of backdoors, let me know which.
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