Backdoor.Baccamun
Posted: July 28, 2014
Threat Metric
The following fields listed on the Threat Meter containing a specific value, are explained in detail below:
Threat Level: The threat level scale goes from 1 to 10 where 10 is the highest level of severity and 1 is the lowest level of severity. Each specific level is relative to the threat's consistent assessed behaviors collected from SpyHunter's risk assessment model.
Detection Count: The collective number of confirmed and suspected cases of a particular malware threat. The detection count is calculated from infected PCs retrieved from diagnostic and scan log reports generated by SpyHunter.
Volume Count: Similar to the detection count, the Volume Count is specifically based on the number of confirmed and suspected threats infecting systems on a daily basis. High volume counts usually represent a popular threat but may or may not have infected a large number of systems. High detection count threats could lay dormant and have a low volume count. Criteria for Volume Count is relative to a daily detection count.
Trend Path: The Trend Path, utilizing an up arrow, down arrow or equal symbol, represents the level of recent movement of a particular threat. Up arrows represent an increase, down arrows represent a decline and the equal symbol represent no change to a threat's recent movement.
% Impact (Last 7 Days): This demonstrates a 7-day period change in the frequency of a malware threat infecting PCs. The percentage impact correlates directly to the current Trend Path to determine a rise or decline in the percentage.
Threat Level: | 8/10 |
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Infected PCs: | 342 |
First Seen: | July 28, 2014 |
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Last Seen: | June 28, 2023 |
OS(es) Affected: | Windows |
Backdoor.Baccamun is a backdoor Trojan that creates a connection with a remote server, which may allow third parties to collect information, disable your PC's security or even control its input. Although, most recently, Backdoor.Baccamun conducted targeted attacks against South Korean entities, its functions also are applicable to PCs in other regions, and malware experts have found limited symptoms associated with this Trojan. Immediately removing Backdoor.Baccamun through preventative security measures and anti-malware tools continues to be the optimal response, as with all similar high-level threats.
A New Trojan by Mail that You may Overlook
At a minuscule nineteen KB, Backdoor.Baccamun has an easily-ignored file size and uses components that are mislabeled to disguise Backdoor.Baccamun as part of the Windows Task Manager. However, malware analysts found that this small package encompass all of the primary functions of a backdoor Trojan, enabling Backdoor.Baccamun to compromise a system's security and lead to further attacks with minimal restrictions. The most noteworthy of Backdoor.Baccamun's attack functions may include:
- Being able to download other files, such as additional threats, which Backdoor.Baccamun may install.
- Contacting a remote server to allow third parties to issue instructions for modifying the infected PC or transferring stolen information. This backdoor connection uses an anonymity-enabling DNS technique that may very well hinder authorities' attempts to identify the persons behind Backdoor.Baccamun's campaign.
- Backdoor.Baccamun also may control other programs on your computer by terminating their processes automatically (for example, by forcing your firewall or anti-virus scanner to close).
Backdoor.Baccamun was first seen relatively recently in targeted attacks against South Korean institutions. As often is the case for such attacks, the distribution mode of choice is e-mail attachments. These RTF files included unsafe content enabling Backdoor.Baccamun to be installed automatically through the CVE-2012-0158 exploit, a vulnerability that also may function through Microsoft Word documents – or even website HTML content.
How to Avoid Being a Baka About Backdoor.Baccamun
Backdoor.Baccamun's creators have gone to substantial efforts to ensure that security researchers have difficulty identifying them, with Backdoor.Baccamun even utilizing a code mapping technique to make their nationalities unclear (although eastern Asian nations remain the likely places of origin). In spite of these additional efforts, Backdoor.Baccamun continues to use the standard e-mail hoaxes that threat authors find preferable for targeting companies and governments, and a competent anti-malware file scanner should be able to detect the unsafe content in Backdoor.Baccamun's RTF attachment. Updated software also can reduce the vulnerabilities like CVE-2012-0158 and similar attacks, which may distribute more than just Backdoor.Baccamun.
So far, Backdoor.Baccamun's campaign is limited to Korea, and, for now, Backdoor.Baccamun isn't seen in non-targeted attacks that would distribute Backdoor.Baccamun indiscriminately. Regardless, Backdoor.Baccamun's efficient coding and packaging make it clear that threat authors are getting no worse at hiding high-level threats in small, easily-ignored files. As always, malware researchers urge you to mind your own online behavior for possible risks, and use anti-malware protection when personal prevention is inadequate or impractical.
Technical Details
File System Modifications
Tutorials: If you wish to learn how to remove malware components manually, you can read the tutorials on how to find malware, kill unwanted processes, remove malicious DLLs and delete other harmful files. Always be sure to back up your PC before making any changes.
The following files were created in the system:%Windir%\Tasks\taskmgr.exe
File name: %Windir%\Tasks\taskmgr.exeMime Type: unknown/exe
Group: Malware file
Registry Modifications
HKEY..\..\{Value}HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run\"Java Run Environment 1.1.0023\" = "%Windir%\tasks\taskmgr.exe"
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