ASCII Archives - The Silicon Underground

Find PHP malware in Linux

Dave Farquhar — Tue, 12 Apr 2016 11:00:38 +0000

A lot of people seem to be looking for help cleaning up hacked or infected web sites lately, so here’s a trick I used in the past to find PHP malware in Linux and clean up the infected files. PHP

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Rob O’Hara on phreaking, Tesla coils and modems

Dave Farquhar — Sun, 14 Apr 2013 20:03:42 +0000

Rob O’Hara posted a podcast about phreaking today. He explains in layperson’s terms how the phone system was controlled by tones, cites it as an example of security through obscurity, and he talks about his own first-person experience subverting the

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How to quickly find the differences between two Word documents

Dave Farquhar — Fri, 11 May 2012 12:08:09 +0000

From time to time, I have to deal with new revisions of familiar implementation guides or other system documentation, and the authors rarely include a changelog in the document. And of course the first question anyone asks about the new guide

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Analysis: Big retailers unite to make DMCA look stupid

Dave Farquhar — Sat, 23 Nov 2002 05:00:13 +0000

A quartet of retailers ganged up on FatWallet.com and made it take down some ads for next week's big sales, citing the DMCA. The 'Net is up in arms.

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One way to defeat spammers

Dave Farquhar — Thu, 07 Jun 2001 17:28:02 +0000

Ever since Brightmail closed up their free filtering service, I've been thinking a lot more about spam because I've been getting a lot more. I know where these losers are getting my e-mail address. It's right here on my Web page. But I need to post that so people can contact me. Fortunately, I found a trick. Look at this:

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No, this is still the old server.

Dave Farquhar — Fri, 01 Jun 2001 17:37:45 +0000

The new server works, but I got sidetracked last night. I had to take care of a weird work problem, and I ran out to a bookstore where the girls who work there seem to have this competition to see who can be the nicest, and then I came back home and had a long phone conversation with an old friend I hadn't talked to in a couple of years. Between all that and trying to make some sense of Steve Gibson's latest discoveries and trying to figure out what he wants and whether I agree with him, my server just kept chugging along.

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Just added: More Like This

Dave Farquhar — Sat, 05 May 2001 17:25:03 +0000

New feature: More Like This. It took me several hours to implement this one. It should have taken me less than thirty minutes. Hot tip: If you try to run a CGI script and you get Internal Server Error messages, try re-uploading the script in ASCII mode rather than the default binary. Betcha it works after that. When running under Linux or Unix, Perl hates extra carriage returns, and Windows often inserts them.

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