http://www.perlmonks.org?node_id=1232506

Anonymous Monk has asked for the wisdom of the Perl Monks concerning the following question:

Hello Everyone, I am a web developer that has recently run into problems with Malware being injected into our hosting servers by an attacker. I have used our hosting companies file manager to manually remove the infected files, however, during this process I discovered a shell script written in Perl that was unfamiliar to me. the file was titled byyl.pl. Due to the ambiguous nature of malware I must understand fully what damage this script has caused in order to protect my websites and my databases. I am unsure if copying and pasting the text from this document, byyl.pl, will have a negative consequence- so I will wait for instructions to send the code. thank you all for your help in advance, I really need it!