- Installs itself without permissions
- Slow Computer
- System crashes
Exploit:Win32/MS04028!jpeg is a particularly designed jpeg image file that is created in order to exploit a vulnerability found in JPEG processing. This vulnerability allows a remote code execution putting the system at critical risk, especially as the malicious code that makes use of this vulnerability usually affects Microsoft Office software. Exploit:Win32/MS04028!jpeg in the long run can cause a so-called buffer overrun which, as a result, leads to an execution of malicious code. Naturally, this vulnerability is already fixed, and the user simply needs to download the service pack to fix the bug.
However, in case the system is not updated regularly, the vulnerabilities remain there in the open, and such things as Exploit:Win32/MS04028!jpeg can make use of them and then disturb the usual computer operations. Usually the user can "catch" this exploit while visiting various suspicious websites. You have to realize that random websites of suspicious content are commonly associated with malware, and are instrumental in worldwide malware distribution. Thus, even if a website does not distribute Exploit:Win32/MS04028!jpeg, it can also enter your system together with another malware. For example, it could be downloaded by a Trojan downloader.
Either way, once the user opens the fake JPEG file the malicious file is executed. Even though there are no definite symptoms for this exploit, it affects Internet Explorer, Microsoft .NET Framework and other system components and programs. Just as it has been mentioned above, the best way to avoid this problem is to install the service pack that fixes this vulnerability in time. However, if you have Exploit:Win32/MS04028!jpeg in your computer already, it would be for the best to scan your system with a reliable antimalware program and then allow it to remove Exploit:Win32/MS04028!jpeg from your computer once and for all.