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Wed, Feb 03, 2016 11:21 pm

eBay JavaScript block does not block all JavaScript

A number of sites that report on technology/computing issues carried reports today regarding the possibility of malware being distributed via eBay custom listings. E.g., TechWeek Europe UK has the article eBay 'Won't Fix' JavaScript Flaw That Exposes Users To Malware, Phishing and Ars Technica has the article eBay has no plans to fix “severe” bug that allows malware distribution. The articles state that eBay normally blocks sellers from using JavaScript code in listings, but that malefactors can circument eBay's block by building their JavaScript code with non- alphanumeric characters, specifically the six characters . (,),[,],! and +. According to the TechEurope UK article:

Security software firm CheckPoint says eBay usually filters out scripts and iFrames from item descriptions or online stores, but only strips alphanumeric characters from these HTML tags.

CheckPoint claims that by using those non-alphanumeric characters, malefactors could pull code from a remote server that would allow them to trick an unsuspecting eBay user visiting a eBay store listing where the nefarious JavaScript is posted into agreeing to install software that the user may incorrectly assume is being provided by eBay.

CheckPoint stated it informed eBay of the potential issue on December 15, but on January 16 was informed that eBay would not be providing a fix for the issue because active content is allowed on eBay's website.

eBay's HTML and JavaScript Policy page has the following guidelines on what sellers aren't allowed to do on their listing pages:

You can't use HTML or JavaScript that:

I.e., the above guidelines do not seem to preclude the use of any JavaScript on a listing page. And there are sites that provide scripts to be used in eBay listings, e.g., Script Snips at Auction Repair .

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Sun, Dec 21, 2014 5:38 pm

CoolYou

A friend was complaining that his laptop, which runs Microsoft Windows 7 Home Premium, was very slow, so he was considering purchasing another laptop. I suggested he download and install Malwarebytes Anti-Malware 1 x 1 px and scan the system with that software. One of the items it detected was CoolYou (image), which it classified as Trojan.Dropper.

[ More Info ]

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Sun, Dec 07, 2014 10:45 pm

Scan of Windows system with Malwarebytes Anti-Malware on 2014-12-07

When I scanned a Windows 7 Professional system with Malwarebytes Anti-Malware it reported a file associated with PUP.Optional.TorchMedia, which I had it remove.

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Sat, Nov 22, 2014 10:00 pm

Items detected by a ClamWin Scan on 2014-11-22

In continuance of an effort to ensure that all malware has been removed from a Windows 7 Professional system, I scanned the system with ClamWin Free Antivirus today. It identified 12 suspect items, but I'm not sure any of those contributed to excessive memory usage I saw at times on the system yesterday from explorer.exe consuming more than 1/2 the 6 GB of memory on the system for prolonged periods.

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Sun, Nov 16, 2014 11:28 pm

Malware Detected by Malwarebytes Anti-Malware 2014-11-16

A user who has been experiencing performance problems with her system recently reported it was running particularly slowly on Friday, November 14. I checked the system this weekend. Malwarebytes Anti-Malware detected some files associated with malware, but I'm not certain all problems associated with the system are resolved yet. One of the files, jm78.dll, it reported as associated with malware may have come from a no longer existing website in Russia, but I'm not certain of that, either and don't have time for futher investigation of the system tonight.

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Sun, Jan 29, 2012 7:59 pm

Redirection to Rogue rr.nu Site

While searching for a power adapter, I found a link for the part number of the power adapter for which I was searching that redirected me to www2.smartouholder.rr.nu. That site displayed a fake virus scan (see image), which reportedly was finding malware on the system from which I was searching, but was really just a ruse to try to lure unsuspecting users into buying rogue antivirus software, i.e., scareware. If I tried to navigate away from the site, I would receive a "Are you sure you want to navigate away from this page?" message.

Scareware - are you sure

No matter which option I selected from "OK" or "Cancel", I was left at the scareware webpage. After finally getting back to a prior Google search page, I checked the site's reputation at Norton™ Safe Web. It did not list the site www2.smartouholder.rr.nu, stating it had not been tested yet, but it did list rr.nu.

Norton Safe Web reported the following for the rr.nu site:

rr.nu

Summary

Computer Threats:
1
Identity Threats:
0
Annoyance factors:
0
Total threats on this site:
1
 
 
Community Reviews:
5

Norton Safe Web listed "Drive-By Downloads" as the threat from the site.

After I was able to navigate away from the site, I added an entry to the /Windows/system32/drivers/etc/hosts file to ensure that the system would not be able to contact the site again. I put the following 2 lines at the bottom of that file:

# Inserted on 2012-01-29. Site is attempting to download rogue antivirus software
127.0.0.1 www2.smartouholder.rr.nu

When a Windows system attempts to find an IP address for a website name, such as www.example.com, it will first check the hosts file to see if an IP address is listed there for the fully qualified domain name. If not, then it will perform a Domain Name System (DNS) query to obtain the IP address associated with the name. By associating the name with 127.0.0.1, which is the loopback address for the local system, you can ensure that a system on which the entry has been put in the hosts file will see the name as pointing to its own address and thus will never be able to reach the actual site.

Note: if you edit the hosts file with the Windows Notepad editor, be sure you save the file as hosts, not hosts.txt. The file may be marked as read-only, also, so in order to save the file. you will need to take off the read-only attribute temporarily and put the attribute back on after you have saved the file. You can do so by right-clicking on the hosts file, choosing Properties and unchecking the read-only attribute. Or you can use the following two commands from the command line to take the attribute off the file and put it back on after you've edited the file.

attrib -r C:\Windows\System32\drivers\etc\hosts
attrib +r C:\Windows\System32\drivers\etc\hosts

You will need to run the commands from an administrator account to do so. You will also need to run Notepad from an administrator account to edit the file. If you are logged in as another user, you can use the "runas" command from the command line to run Notepad or the attrib command from the administrator account.

E.g., you can use runas /user:administrator cmd to open another command prompt under the administrator account to run the attrib commands or runas /user:administrator notepad to run Notepad from the administrator account. Alternatively, for the attrib command you could use runas /user:administrator "attrib -r C:\Windows\System32\drivers\etc\hosts". If you are using a domain administrator account you would use runas /user:domainname\administrator.

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Tue, Nov 15, 2011 10:40 pm

AV Security 2012v121.exe Rogue Antivirus Program

I removed rogue antivirus software associated with AV Security 2012v121.exe from a user's system. The AV Security 2012 "security" software was declaring other programs on the system as infected and preventing other programs from running.

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Wed, Mar 30, 2011 11:59 pm

System Defender Infection

A user reported that annoying messages kept popping up on his sysetm every few minutes from System Defender stating his system was infected. When I checked his system, I found the rogue anti-spyware/anti-virus software named System Defender on the system. I was able to remove it with Malwarebytes' Anti-Malware, which has a free version of the software that can be used to remove spyware and viruses. The commercial version will run continually while the free version can be used to manually scan a system.

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Tue, Jan 05, 2010 11:00 pm

Malware Scanning on Dell Inspiron 1526

The owner of a Dell Inspiron 1526 laptop running Microsoft Windows Vista with Service Pack 2 installed was seeing popups warning the system was infected with malware. When I logged into the system, I saw one such warning. The Task Manager would not run nor could I get a command prompt at the time.

When I checked the system, I didn't find any rogue antivirus/antispyware software on it, though that I could link to the warning. I did find a .wmv file masquerading as an .mp3 file that Symantec Security Scan identified as Trojan.Wimad, however.

[ More Info ]

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Tue, Sep 08, 2009 9:53 pm

Hello Kitty Online - Trojan.Win32.Generic!BT

A family member got an offer to become a beta tester for Hello Kitty Online today. The email message she received provided a link to download a setup program HKO_Downloader.exe. After she downloaded the file, I had her submit it to Virustotal , a site that checks files for malware with multiple antivirus programs. The Virustotal analysis of the file showed 2 of the 41 programs it used to check the file reporting a potential issue with the file. Note: someone else had uploaded a file named HKO_Island_of_Fun.exe on September 3, 2009 that Virustotal identified as being an identical file because that file had an identical hash value.

File HKO_Island_of_Fun.exe received on 2009.09.03 20:55:55 (UTC)
Current status: finished
Result: 2/41 (4.88%)

The two that identified the file as potentially being malware were as follows:

AntivirusVersionLast UpdateResult
McAfee+Artemis57302009.09.03 Suspect-29!4A5CA8AF0ECD
Sunbelt3.2.1858.22009.09.03 Trojan.Win32.Generic!BT

Information on Mcafee+Artemis is available at McAfee Artemis Technology. An evaluation of McAfee+Artemis is available at Anti-Virus Comparative Technology Preview Report McAfee Artemis.

Sunbelt's Trojan.Win32.Generic!BT Information and Removal webpage shows the following:

Threat NameTrojan.Win32.Generic!BT
Summary Trojan.Win32.Generic!BT is a downloader associated with rogue security programs (also called “scareware.”) Once downloaded, the rogues pretend to scan a victim.s computer for malware then display false warnings that the machine is infected. It tries to convince victims to purchase useless security software.
Category Trojan
Level High
AdviceRemove
Description Other names: F-Secure: Trojan-Downloader.Win32.FraudLoad.ffz Kaspersky: Trojan-Downloader.Win32.FraudLoad.ffz Microsoft: TrojanDownloader:Win32/FakeVimes
Release DateApr 7 2009
Last UpdatedAug 7 2009
File Traces- No traces available.

The HKO_Downloader.exe file downloads the actual software needed to participate in Hello Kitty Online, which is a site run by Aeria Games. I concluded that they may have licensed a downloading program that some others may use for nefarious purposes, but I didn't see sufficient reason to be concerned in this case and told her she could download the software and participate in the beta testing.

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