Home Malware Programs Backdoors BKDR_ANDROM.NTW


Posted: January 21, 2013

Threat Metric

Threat Level: 6/10
Infected PCs: 92
First Seen: January 21, 2013
OS(es) Affected: Windows

BKDR_ANDROM.NTW is a backdoor Trojan-based component of Andromeda, a multiple-component PC threat that steals confidential information, installs other types of malware, distributes itself as a worm and compromises the security of the infected computer. Andromeda attacks that install BKDR_ANDROM.NTW have been observed to use Trojan downloaders that are disguised as Java updates – a disguise that may catch many an unwary PC user – since Java was recently updated to correct a well-publicized vulnerability. Because of its sophistication and tendency to target sensitive information such as bank passwords, BKDR_ANDROM.NTW and other Andromeda variants should be removed with appropriately advanced anti-malware programs whenever they're available.

How a Variety of Problems Can Spring Forth from a Simple Update

Variants of Andromeda have been found to use exploit kits like Blacole to distribute themselves, but BKDR_ANDROM.NTW uses a slightly different tactic: a Trojan downloader, JAVA_DLOADER.NTW, that's promoted as a supposed update for Java. Aside from minor typos in the download link (which is hosted at a confirmed hostile site), there aren't any visible clues as to JAVA_DLOADER.NTW's true nature until after it's been launched and has installed several components of BKDR_ANDROM.NTW.

BKDR_ANDROM.NTW also may install other PC threats, as SpywareRemove.com malware experts would expect from any malware that's known to use a multi-component structure, and will attempt to subvert the infected PC's firewall and other security features. The foremost threat from BKDR_ANDROM.NTW is its ability to smuggle private information, such as passwords for bank accounts and other financial data, although BKDR_ANDROM.NTW also may block security programs, enable criminals to access your computer or exploit your PC's own resources to distribute itself through social media.

Putting Out the Star of BKDR_ANDROM.NTW with Nothing Lost in the Meantime

If you've installed a Java update from a suspicious source, SpywareRemove.com malware experts suggest scanning your PC immediately and with suitably-powerful anti-malware products. Attacks by BKDR_ANDROM.NTW Trojans are unlikely to show many symptoms, although you may notice resource usage discrepancies that are a result of keylogging and other BKDR_ANDROM.NTW-related attacks. Due to the advanced nature of BKDR_ANDROM.NTW's defenses and basic structure, you shouldn't attempt to delete BKDR_ANDROM.NTW with normal program-removal methods if you do have access to suitable anti-malware tools.

As long as you delete BKDR_ANDROM.NTW completely and quickly, any attacks that your PC suffers through are unlikely to show long-term damage. However, SpywareRemove.com malware research team still encourages you to change any potentially-compromised passwords, along with other security information, after your PC has been disinfected of BKDR_ANDROM.NTW. Failure to do this may allow criminals operating BKDR_ANDROM.NTW servers to compromise accounts associated with your PC even after BKDR_ANDROM.NTW has been removed.

Additionally, you may wish to double-check your social networking-related accounts and removable hard drive devices (USB thumb drives, etc) – since both of these platforms are known to be used by malware with worm capabilities like BKDR_ANDROM.NTW.

Use SpyHunter to Detect and Remove PC Threats

If you are concerned that malware or PC threats similar to BKDR_ANDROM.NTW may have infected your computer, we recommend you start an in-depth system scan with SpyHunter. SpyHunter is an advanced malware protection and remediation application that offers subscribers a comprehensive method for protecting PCs from malware, in addition to providing one-on-one technical support service.

Download SpyHunter's Malware Scanner

Note: SpyHunter's free version is only for malware detection. If SpyHunter detects malware on your PC, you will need to purchase SpyHunter's malware tool to remove the malware threats. Learn more on SpyHunter. If you would like to uninstall SpyHunter for any reason, please follow these uninstall instructions. To learn more about our policies and practices, visit our EULA, Privacy Policy and Threat Assessment Criteria .

Why can't I open any program including SpyHunter? You may have a malware file running in memory that kills any programs that you try to launch on your PC. Tip: Download SpyHunter from a clean computer, copy it to a USB thumb drive, DVD or CD, then install it on the infected PC and run SpyHunter's malware scanner.

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:

8392bc354d99ecacc71370d6bd4550a9 File name: 8392bc354d99ecacc71370d6bd4550a9
Size: 35.41 KB (35416 bytes)
MD5: 8392bc354d99ecacc71370d6bd4550a9
Detection count: 91
Group: Malware file
Last Updated: January 22, 2013
javaupdate11.jar File name: javaupdate11.jar
Mime Type: unknown/jar
Group: Malware file
javaupdate11.class File name: javaupdate11.class
Mime Type: unknown/class
Group: Malware file
up1.exe File name: up1.exe
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
up2.exe File name: up2.exe
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
Mime Type: unknown/[EXTENSION NAME]
Group: Malware file
%System Root%\Documents and Settings\All Users\svchost.exe File name: %System Root%\Documents and Settings\All Users\svchost.exe
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
%System Root%\Documents and Settings\All Users\Local Settings\Temp\ms[RANDOM CHARACTERS].[EXTENSION NAME] File name: %System Root%\Documents and Settings\All Users\Local Settings\Temp\ms[RANDOM CHARACTERS].[EXTENSION NAME]
Mime Type: unknown/[EXTENSION NAME]
Group: Malware file

Registry Modifications

The following newly produced Registry Values are:

HKEY..\..\{Value}HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\Run [RANDOM NUMBER] = "%System Root%\Documents and Settings\All Users\Local Settings\Temp\ms[RANDOM CHARACTERS].[EXTENSION NAME]"HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run SunJavaUpdateSched = "%System Root%\Documents and Settings\All Users\svchost.exe"HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List[MALWARE PATH]\[MALWARE NAME].exe = "[MALWARE PATH]\[MALWARE NAME].exe:*:Enabled:[MALWARE NAME]"HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\WindowsLoad = "%User Temp%\ms[RANDOM CHARACTERS].[EXTENSION NAME]"