Threat Database Trojans Trojan.Dropper.Koobface.J

Trojan.Dropper.Koobface.J

By CagedTech in Trojans
Published:
Last updated:

Threat Scorecard

Threat Level: 80 % (High)
Infected Computers: 390
First Seen: December 7, 2010
OS(es) Affected: Windows

The detection of Trojan.Dropper.Koobface.J on your system indicates a potential security threat that requires immediate attention. This type of malware is designed to compromise your computer's security and potentially steal sensitive information or install additional malicious software. It is essential to understand the nature of this threat and take prompt action to remove it and prevent future infections.

What Is Trojan.Dropper.Koobface.J?

Trojan.Dropper.Koobface.J is a type of Trojan malware that can install additional malicious software on your computer. The name "Trojan" refers to the fact that this type of malware disguises itself as legitimate software, allowing it to evade detection and gain access to your system. The "Dropper" part of the name indicates that this malware is designed to install other malicious programs, which can lead to a range of problems, including data theft, system crashes, and compromised security.

How Trojan.Dropper.Koobface.J Operates

Trojan.Dropper.Koobface.J operates by exploiting vulnerabilities in your system's security, allowing it to install itself and potentially other malicious software. Once installed, it can communicate with its creators or other malicious servers to download additional malware, steal sensitive information, or carry out other malicious activities. This type of malware can be spread through various means, including infected software downloads, phishing emails, or exploited vulnerabilities in web browsers or other software.

Symptoms of Infection

Symptoms of a Trojan.Dropper.Koobface.J infection can vary, but common signs include slow system performance, frequent crashes, and unusual network activity. You may also notice that your web browser is being redirected to unwanted websites, or that your computer is displaying unusual pop-ups or advertisements. In some cases, you may not notice any symptoms at all, which is why it's essential to regularly scan your system for malware and keep your security software up to date.

  • Slow system performance
  • Frequent crashes
  • Unusual network activity
  • Redirected web browser
  • Unwanted pop-ups or advertisements

How to Remove Trojan.Dropper.Koobface.J

  1. Boot your computer in Safe Mode with Networking to prevent the malware from loading and to allow you to download and install removal tools.
  2. Perform a full scan of your system using a reputable anti-malware tool, such as SpyHunter, to detect and remove the malware.
  3. Uninstall any suspicious programs that may be related to the malware infection.
  4. Reset your web browsers, including Chrome, Firefox, and Edge, to their default settings to remove any malicious extensions or settings.
  5. Reboot your computer and perform another full scan to ensure that the malware has been completely removed.

Conclusion

Removing Trojan.Dropper.Koobface.J from your system requires careful attention to detail and a thorough understanding of the malware's behavior. By following the steps outlined above and taking proactive measures to protect your system, you can help prevent future infections and keep your computer and personal data safe. Remember to always keep your security software up to date, avoid suspicious downloads and email attachments, and use strong passwords to protect your online accounts.

Aliases

15 security vendors flagged this file as malicious.

Antivirus Vendor Detection
AVG Dropper.Generic.CJNE
AhnLab-V3 Win-Trojan/Koobface.230912
AntiVir TR/Drop.Koobface.J.35
Panda Suspicious file
AVG Dropper.Generic.CJKM
McAfee-GW-Edition Heuristic.LooksLike.Trojan.Dldr.Lipler.H
AntiVir TR/Drop.Koobface.J.34
Symantec Suspicious.Insight
Panda Generic Malware
AVG Dropper.Generic2.AFQ
Fortinet W32/Koobface.C
AhnLab-V3 Win-Trojan/Xema.variant
Kaspersky Trojan-Dropper.Win32.Koobface.bc
AVG Dropper.Generic.CLUP
AhnLab-V3 Win-Trojan/Koobface.232960

File System Details

Trojan.Dropper.Koobface.J may create the following file(s):
# File Name MD5 Detections
1. aokomon.dll f34dac181727472c164224db8238c8a3 41
2. imm32oko.dll 6e4762907885579642f9b896f478cf6f 40
3. btw_oko.dll 1b196b8b6d0cf12dfbc653ee8c731230 8
4. certoko.dll fe9826bb471e2aa3bf4b4a860946e49d 4
5. rdr_1271038255.exe c4780ffe46de10020145eccaf5a2231d 2
6. rdr_1271116465.exe 69adb657a568c9c57aee19fb2a404db7 2
7. rdr_1271157730.exe 3051c2f9795043343e99fcdd21504b52 2
8. rdr_1270720761.exe 0307228956c892096e4e37a6e3c41fca 1
9. rdr_1271236344.exe 7bab8b0f183bef29beaa161178292f6d 1
10. rdr_1270053676.exe 8c8d05bb6c592db4109b24f50db64257 1
11. rdr_1270160336.exe 0ffbfd40c48aa56b6c2a99c440301b66 1
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