[04:39] Do you guys run AV on your ubuntu machines? [04:43] gbell: yes, but only for incoming mail [05:14] ClamAV? [05:14] @blahdeblah ClamAV? [05:14] gbell: Error: "blahdeblah" is not a valid command. [05:15] gbell: just use names; no @ needed [05:15] gbell: And yes, ClamAV :-) [05:30] blahdeblah: Last dodgy attachment I ran through ClamAV came up blank. AV is so technically challenging - they run virtual machines - that I don't know how an OS project could measure up. [05:31] Totally true; I believe VirusTotal has an API nowadays; it would be worth checking out whether there are any filters for postfix/spamassassin which allow checking of file hashes against its API (similar to razor/pyzor, but for AV rather than spam)... [05:32] file hashes don't work with modern viruses that mutate. [05:32] and yet VirusTotal is still a useful and viable service [05:33] Don't you upload the entire binary to VirusTotal? [05:33] They recently added hash checking via API, I believe [05:39] Interesting... you can send a hash to 'rescan' a file (I guess that just means getting the results again). https://www.virustotal.com/en/documentation/public-api/ [05:39] My Win7 Virtualbox instance just got infected today. First time ever. I'm hoping they didn't crawl my SMB shares (linux host) and infect other stuff. [05:41] gbell: Sophos has a linux agent, at $WORK[-1] we had exim piping things through it first before delivery. not sure how feasible that is for home though, no idea on pricing. [05:41] https://www.sophos.com/en-us/products/free-tools/sophos-antivirus-for-linux.aspx [05:42] there you go, free. [05:45] bradm: That might even be worth having a play with [05:45] blahdeblah: my knowledge on how it runs is several years old, so I couldn't comment on how good it is these days, but its free, what could you lose other than time? [05:46] you could probably even run both clamav and sophos via spamassassin or something, not sure how well the free version plays with others though [05:46] gbell: Do you know anything about the infection vector on your Win7 box? One thing we used to do at $job - 1 was run an AV filter on the local squid proxy; it had surprisingly little impact, and still picked up quite a few drive-by downloads. [05:47] bradm: I use amavis, and that definitely supports setups like that [05:47] blahdeblah: depends on how well the sophos agent does integration I guess [05:48] pretty sure it's supported out of the box with amavis [05:49] thats great then, should work nicely. [05:50] ah, they want name and email details to download it [05:51] understandable; they need to be able to spam you, right? :-) [05:58] totally. [06:24] blahdeblah: yeah, downloaded/installed 7zip, resedit and chromium today. I think it was one of the first two. [06:28] oh, fun, the 7zip I downloaded (from their site) shows up on Virustotal: https://www.virustotal.com/en/file/543457ec106a47cf74e0f6f84a40acefcc5d0faee909266745008fa9ab3a5681/analysis/ Could be a false-positive... the names of the malware are different than what MS Security said I had (Win32/Hadsruda!bit) [06:32] Correction. resedit, not 7zip. [07:27] gbell: Malware names vary quite a lot from vendor to vendor