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Tuesday, April 16, 2013

Exploit:Java/CVE-2012-1723.gen!A Damage Computer/How to Remove Java/CVE-2012-1723 Completely

Getting attacked by java/CVE-2012-1723.gen!A can be a nightmare, here’s the quotation from one of its victims:

‘Yesterday, while visiting a website, MSE detected exploit:Java/CVE-2012-1723.gen!A. When I opened MSE for more information, it said that the exploit had been quarantined (but it didn't show up under quarantined items) and gave an error message: "Security Essentials encountered the following error: Error code 0x80508023. The program could not find the malware and other potentially unwanted software on this computer."

Now I've gotten this error before, so I was really worried. According to this, "It can also mean that the threat was blocked, coming via an infected web page, and then a scan was unable to remove it as it never saved to the browser cache." I scanned with MBAM to make sure, and it detected nothing.

Flashforward to today, and when I scan my computer with MSE, it says that I have exploit:Java/CVE-2013-0431. Apparently, unlike the other, this threat hadn't been blocked. So I removed the exploit, emptied my java cache, disabled Java on Firefox (I had it disabled before, but I think updating Firefox or Java turned it back on), downloaded Noscript, and scanned with MBAM. It didn't detect anything.’

Besides error problem, Exploit:java/cve-2012-1723.gen!A manages to arouse more:

  • Opens up a backdoor, stay ready to be exploited by tracking cookies and other aggressive virus in the wild;
  • Loads down tracking cookies as well as its variants like Java/CVE-2013-0431.c for more information;
  • Delete and corrupt some systematic files and folders that reference running of critical programs, causing some of services disabled;
  • Makes unsolicited access from remote server possible, causing error message to pop up without stop.

How to Remove Java/CVE-2012-1723 Easily?

Plan A: Remove Java/CVE-2012-1723 Manually

1. Reboot your computer and log into Safe Mode with Networking.

2. Show hidden files.
a) open Control Panel from Start menu and search for Folder Options; 

b) under View tab to tick Show hidden files and folders and non-tick Hide protected operating system files (Recommended) and then click OK;
c) click on the “Start” menu and then click on the “Search programs and files” box, Search for and delete these files created by Java/CVE-2012-1723.gen!A:
  • %UserProfile%\[random].exe
  • %ProgramFiles%\Internet Explorer\Connection Wizard\[random]
  • %Windir%\Microsoft.NET\Framework\[random].exe
  • %System%\[random].exe
  • %Temp%\[random].bat

4: Please stop the processes of java/CVE-2012-1723.gen!A


5. Go to the Registry Editor to delete all entries related to Java/CVE-2012-1723.gen!A.

  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\{random characers}.exe
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\{random characers}.exe
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run\{random characers}.exe
  • {malware filename}=%Aplication Data%\{malware filename}.exe
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer"NoDesktop" = '1'
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run "[random].exe"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\[random numbers]
  • HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = [random]

6. Reset your IE
a) Open Internet Explorer. Click on the Tools menu and then select Internet Options.
b) In the Internet Options window click on the Advanced tab. Then click on the Restore Defaults button and then press OK.
Good for you: Wanna make the removal of Java/CVE-2012-1723 easier? Dare to try something new? Spyhunter can not only remove Java/CVE-2012-1723 completely for you but also protect your computer from additional malware like trojan, spyware and ransomware. Download and install Spyunter right away!

Plan B: Remove Java/CVE-2012-1723 automatically (with SpyHunter)

Step A. Download removal tool SpyHunter

1) Click here or the icon below to download Free SpyHunter automatically.

2) Follow the instructions to install SpyHunter
  spyhunter run

spyhunter setup

spyhunter setup

Step B. Run SpyHunter to block Java/CVE-2012-1723

Run SpyHunter and click "Malware Scan" button to scan your computer, after detect this unwanted program, clean up relevant files and entries completely.

 spyhunter3 scan

Step C. Restart your computer to take effect.


Are you thinking about making the Java/CVE-2012-1723 removal 1 stone 2 birds happen? There is actually one antivirus program can help you. Download and install Spyhunter to remove Java/CVE-2012-1723 and protect your computer in the futher!