I broke Safari trying to get rid of Flashback malware. How do I fix it?

Question

I foolishly tried following the instructions on the CNET site for finding if I have the Flashback malware and supposedly fixing it:
http://reviews.cnet.com/8301-13727_7-57410096-263/how-to-remove-the-flashback-ma lware-from-os-x/?tag=mncol;txt
On the page, it says to run this command in Terminal and that if it returns a path result that you have the malware:
defaults read /Applications/Safari.app/Contents/Info LSEnvironment
When I ran the above, it gave me the following:
"DYLD_INSERT_LIBRARIES" = "/Applications/safari.app/contents/resources/.PassmarkMonitorTestV.xsl" 
Based on the instructions on the CNET site, I believed that this file was infected and I deleted it, even though it was a hidden file. I followed the rest of the instructions on the page as well, which would supposedly "reset" the infected application, but  this didn't work.
I now can't run Safari, It would apear that the file deleted was necessary for it to run.
I tried downloading Safari from the apple.com website so that I can reinstall it, but when I ran the installer, it said I couldn't use it because there was a newer version already on my machine.
I'm running Mac OS X Snow Leopard. I'm not sure what version of Safari I'm running (I can't open Safari) but it must be higher than the version on Apple's site, which is 5.1.4.
Here is the Safari error report:
Process:    
Safari [516]
Path:       
/Applications/Safari.app/Contents/MacOS/Safari
Identifier: 
com.apple.Safari
Version:    
Build Info: 
WebBrowser-75345503~2
Code Type:  
X86-64 (Native)
Parent Process:  launchd [98]
Date/Time:  
2012-04-05 21:14:59.436 -0400
OS Version: 
Mac OS X 10.6.8 (10K549)
Report Version:  6
Interval Since Last Report:     
2686299 sec
Crashes Since Last Report:      
13
Per-App Crashes Since Last Report:   7
Anonymous UUID:                 
Exception Type:  EXC_BREAKPOINT (SIGTRAP)
Exception Codes: 0x0000000000000002, 0x0000000000000000
Crashed Thread:  0
Dyld Error Message:
  could not load inserted library: /Applications/Safari.app/Contents/Resources/.PassmarkMonitorTestV.xsl
Binary Images:
0x7fff5fc00000 -
0x7fff5fc3be0f  dyld 132.1 (???) <29DECB19-0193-2575-D838-CF743F0400B2> /usr/lib/dyld
How can I repair my Safari installation?
<Edited By Host>

Answer 1

If you’re certain you know when the infection happened, and you back up with Time Machine or something similar, you can save yourself a lot of time by restoring your whole system from the most recent snapshot taken before it was infected. Then take Steps 7, 8, and 10 below.
How can you tell when the infection took place? All you can be sure of is that you were infected some time before the problems started. You may have visited a blog that prompted you to install some kind of software, or a “certificate.” If you remember doing that recently, mention it in a reply, but don’t post a link.
If you don’t know when you were infected, there's no easy, reliable way to remove the malware, because it's constantly changing. There are differences of opinion on this site as to the best of course of action, so you should do your own research before deciding how to proceed.
I suggest you take the following steps:
1. Back up all data to at least two different devices, if you haven't already done so.
2. Boot from your recovery partition (if running Mac OS X 10.7 or later) or your installation disc (if running an earlier version of the Mac OS), launch Disk Utility, and erase the startup volume. This action will destroy all data on the volume, so you must be sure of your backups.
3. Install the Mac OS.
4. Reboot and go through the initial setup process to create an account with the same name as your old one. Don’t import anything from your backups at this stage.
5. If running Mac OS X 10.6.x or earlier, run Software Update. You may have to run it more than once to fully update your system.
6. Restore the contents of the top-level subfolders of your home folder except “Library” from the most recent backup. The Library folder may contain components of the malware. It’s best not to restore anything from there. If you must do so, restore only files, not whole folders with all their contents, and only if (a) they’re visible in the Finder, and (b) you know what they are, and (c) they haven’t been altered. Don’t restore anything in the home subfolder Library/LaunchAgents, if it exists, or any hidden files or folders, no matter where they are.
7. If you’re running Mac OS X 10.5.8 or earlier, launch Safari and select Safari ▹ Preferences… ▹ Security from the menu bar. Uncheck the box labeled Enable Java. Because of known bugs, Java in those OS versions is unsafe to use on the Internet. (Note: I’m not referring to JavaScript, which is unrelated to Java, despite the similar names.) If you’re running Mac OS 10.6.8 or later, you should still disable the Java web plugin unless you really need it. Few websites have legitimate Java content nowadays. If you encounter one that does, enable Java temporarily.
8. Change every Internet password you have, starting with banking passwords. Check all financial accounts for unauthorized transactions. Take this step only after you’ve secured your system in the preceding steps, not before.
9. Reinstall your third-party software from fresh downloads or original media, not from backups which may be contaminated.
10. If you use any third-party web browsers, disable Java in their preferences. As with step 7, this step is mandatory if you’re running any version of Mac OS X older than 10.6. Otherwise it’s optional, but recommended.