I have windows xp service pack 3 installed on my computer. I found Ransom virus and JS.KRYPTIK.ATB trojans on my computer. A garbage txt file with Chinese or Japanese characters has got written into all the system folders and all other folders in all the drives of my computer drives C to G, which has encrypted all my pdf, rar, doc, zip, txt, bmp gif, jpg, wmv and mp3 files and has also eaten up much of my hard disk space *(before the virus infected the computer, there was a minimum of 592 mb fee space available on each drive.Now, it shows only 2mb, 3mb, 1.5 mb and so on as free available space on the hard disk drives. The garbage txt file contains the number 921537 inside it and all the encrypted files are suffixed with this number.
Further, a strange humming noise begins when the computer is started and ends only when the computer is shut down. I have managed to delete all these txt files and kept only one copy of the file on the desktop after renaming it as .roda, so that no existing software can read the file and spread it further. My file search command has also been disabled and so, I had to download effective file search file to search for the trojans and the infecting txt file and delete all of them. I need urgent help, as my computer has been down for a week. I have run spyware doctor, spyware sweeper, avast antivirus, spybot search and destroy, spycleanergold, adwcleaner, ccleaner, yet another cleaner, spyhunter, superantispyware. The garbage txt file has planted itself into my spybot/pycleaner gold and avast folders and disabled their functioning. I realised this while running the other antispyware. As i do not have any backup for the encrypted files, I need help urgently as most of these files are valuable files downloaded from expired websites without any back up.
Please help me. My email address is sanjaydoogar@yahoo.com