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Malwarebytes isn't getting rid of things it detects

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I ran into an issue with firefox acting up recently. This led me to finding an extension that I didn't add, which would come back after a full uninstall/reinstall of firefox, which someone identified as malware. I did manage to remove this extension, and it hasn't come back. I'm unsure if this is connected to the current issue or not, but it led me to running a malwarebytes scan and keeping a closer eye on things.

I updated and ran malwarebytes, and it found things it identified as trojans, 4 of them. I removed them, and it rebooted.

The next day, I ran another scan, figuring I'll run daily scans for now until I'm sure things are cool. It found 2. I removed them. Ran it again, found the same 2 again. Here's the log I get:

Malwarebytes Anti-Malware


Database version: v2012.11.29.08

Windows 7 Service Pack 1 x64 NTFS

Internet Explorer 9.0.8112.16421

E127811 :: SZMISLAPTOP [administrator]

11/29/2012 8:51:10 AM

mbam-log-2012-11-29 (09-55-14).txt

Scan type: Full scan (C:\|D:\|)

Scan options enabled: Memory | Startup | Registry | File System | Heuristics/Extra | Heuristics/Shuriken | PUP | PUM

Scan options disabled: P2P

Objects scanned: 412315

Time elapsed: 57 minute(s),

Memory Processes Detected: 0

(No malicious items detected)

Memory Modules Detected: 0

(No malicious items detected)

Registry Keys Detected: 0

(No malicious items detected)

Registry Values Detected: 0

(No malicious items detected)

Registry Data Items Detected: 0

(No malicious items detected)

Folders Detected: 0

(No malicious items detected)

Files Detected: 2

C:\Users\jonathang\Local Settings\Application Data\chromeupdate.crx (Trojan.Agent) -> No action taken.

C:\Users\jonathang\AppData\Local\chromeupdate.crx (Trojan.Agent) -> No action taken.


Now, I've actually browsed out to the appdata path and deleted that chromeupdate.crx file myself, and seen it gone, and then ran another malwarebytes scan, and it shows up again.

The local settings\application data path, however, I can't even get to. I have my computer set to show hidden folder, yet there is no local settings folder visible in my jonathang folder, and if I try to enter the path in the address field it tells me that access is denied, despite the fact I'm an administrator on this computer.

Not sure why malwarebytes isn't removing what it is finding, but I need some help here.

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  • Root Admin

Hello and welcome to Malwarebytes

If you think you are infected, here are the steps needed to get your computer cleaned....

Please read the following so that you can begin the cleaning process:

Don't use any temporary file cleaners unless requested - this can cause data loss and make recovery difficult

You have 3 Options that you can choose from as listed below:

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As we don't deal with malware removal in the
General Malwarebytes' Anti-Malware Forum
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Please be patient, someone will assist you as soon as possible.

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