Trojan.Dorkbot.B

The detection of Trojan.Dorkbot.B on your system indicates a potential security threat that requires immediate attention. This report aims to provide you with a comprehensive understanding of the threat, its operation, symptoms, and most importantly, steps to remove it from your system. It is essential to approach this situation with caution and follow the recommended removal procedures to ensure your system's security and integrity.

What Is Trojan.Dorkbot.B?

Trojan.Dorkbot.B is identified as a Trojan-type threat, which means it is a type of malware that disguises itself as legitimate software but actually allows unauthorized access to your system. Trojans can be particularly dangerous because they can open backdoors on your computer, enabling hackers to access your system remotely without your knowledge. The name "Trojan.Dorkbot.B" itself does not specify a known malware family, but it indicates the type of threat it poses.

How Trojan.Dorkbot.B Operates

Trojan.Dorkbot.B, like other Trojans, operates by deceiving users into installing it on their systems. Once installed, it can perform a variety of malicious actions, including stealing sensitive information, downloading additional malware, and allowing remote access to the infected computer. The specific operations of Trojan.Dorkbot.B can vary, but its primary goal is to compromise the security of the infected system for malicious purposes.

Symptoms of Infection

The symptoms of a Trojan.Dorkbot.B infection can be subtle and may not always be immediately apparent. Common signs include unusual system behavior, such as unexpected pop-ups, slow system performance, and unfamiliar programs or icons on your desktop. Additionally, you might notice that your browser settings have changed without your intervention, or you might be redirected to unwanted websites. It's crucial to be vigilant and monitor your system's behavior regularly to catch any potential infections early.

How to Remove Trojan.Dorkbot.B

1. Boot your computer in Safe Mode with Networking. This will limit the malware's ability to launch and make it easier to remove.
2. Perform a full scan of your system using a reputable anti-malware tool, such as SpyHunter. Ensure the tool is updated with the latest definitions before scanning.
3. Uninstall any suspicious programs that you do not recognize or that were installed around the time the malware was detected.
4. Reset your web browsers (Chrome, Firefox, Edge, etc.) to their default settings. This can help remove any malicious extensions or settings changes made by the Trojan.
5. Reboot your computer and perform another full scan with your anti-malware tool to ensure that all components of the Trojan have been removed.

It's also a good practice to change passwords for all accounts that you've used on the infected system, as Trojans can be used to steal login credentials.

Conclusion

Removing Trojan.Dorkbot.B from your system requires careful and systematic steps to ensure that all malicious components are eliminated. By following the guidance provided, you can effectively remove the threat and secure your system. Remember, prevention is key; always be cautious when downloading software, avoid suspicious links, and keep your security software up to date to protect against future infections. Regular system backups and monitoring can also help in early detection and mitigation of malware threats.

Analysis Report

General information

Family Name:	Trojan.Dorkbot.B
Signature status:	No Signature

Known Samples

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Known Samples

This section lists other file samples believed to be associated with this family.

MD5: 10b029115108d406b88b70ca391480c9 SHA1: 404bd0dd3f2ca6c13e6c18e5d4708b9e70e8c5a8 SHA256: A2EF6AD63D42BF44A92D5BFFB8094A98FD7D5993D61093771C8E8CA40064C44A File Size: 6.99 MB, 6986251 bytes

MD5: e201d666e4196b3df43ce780ceab46e3 SHA1: 11b93da82b05abc8157943b59e4e9bf4353bbe33 SHA256: BEECEFB09F237715E6BC6337607A4D8A42151AF1AB8822736A81A00FED496AA2 File Size: 316.98 KB, 316984 bytes

MD5: 5453a1d47e632cc65da81eef5460a25b SHA1: bd972b64e081e5dc09e2c344f58fd9fbccbf28a8 SHA256: 35C821AE3BDFBF351FA9027C6737FFBE44BE29F362CD6388760DEE2729173460 File Size: 5.25 MB, 5249032 bytes

Windows Portable Executable Attributes

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Windows Portable Executable Attributes

This section lists file attributes found within family samples. These attributes are extracted from the files’ Windows PE (Portable Executable) specification and various system flags. Portable Executable Attributes give malware researchers insight into a file’s functionality, executable details, platform and runtime environment.

• File doesn't have "Rich" header
• File doesn't have debug information
• File doesn't have exports table
• File doesn't have relocations information
• File doesn't have security information
• File is 32-bit executable
• File is either console or GUI application
• File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
• File is Native application (NOT .NET application)
• File is not packed

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• IMAGE_FILE_DLL is not set inside PE header (Executable)
• IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)

File Icons

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File Icons

This section displays icon resources found within family samples. Malware often replicates icons commonly associated with legitimate software to mislead users into believing the malware is safe.

Windows PE Version Information

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Windows PE Version Information

This section displays values and attributes that have been set in the Windows file version information data structure for samples within this family. To mislead users, malware actors often add fake version information mimicking legitimate software.

Name	Value
Assembly Version	2.5.11.0
Comments	Aktualizator komponentow AnoMail
Company Name	AnoMail.pl Nanosoft
File Description	Verim Enterprise SQL Database Schema Sync Tool Wewnetrzny aktualizator pakietu AnoMail 2015
File Version	5.09.0005 2.5.11
Internal Name	am-Serwisowy VerimSqlDBupt.exe
Legal Copyright	Copyright (C) 2012 Nanosoft P. Rusiecki 2015
Legal Trademarks	AnoMail.pl
Original Filename	am-Serwisowy.exe VerimSqlDBupt.exe
Product Name	AnoMail Moduł Serwisowy Verim Enterprise SQL Database Schema Sync Tool
Product Version	5.09.0005 2.5.11

Digital Signatures

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Digital Signatures

This section lists digital signatures that are attached to samples within this family. When analyzing and verifying digital signatures, it is important to confirm that the signature’s root authority is a well-known and trustworthy entity and that the status of the signature is good. Malware is often signed with non-trustworthy “Self Signed” digital signatures (which can be easily created by a malware author with no verification). Malware may also be signed by legitimate signatures that have an invalid status, and by signatures from questionable root authorities with fake or misleading “Signer” names.

Signer	Root	Status
AnoMail.pl	AnoMail.pl	Self Signed

File Traits

• big overlay
• HighEntropy
• x86

Block Information

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Block Information

During analysis, EnigmaSoft breaks file samples into logical blocks for classification and comparison with other samples. Blocks can be used to generate malware detection rules and to group file samples into families based on shared source code, functionality and other distinguishing attributes and characteristics. This section lists a summary of this block data, as well as its classification by EnigmaSoft. A visual representation of the block data is also displayed, where available.

Total Blocks:	148
Potentially Malicious Blocks:	1
Whitelisted Blocks:	82
Unknown Blocks:	65

Visual Map

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ? ? ? ? ? ? 0 ? ? ? ? ? 0 ? ? 0 ? 0 ? 0 ? 0 0 ? ? ? ? 0 0 ? ? 0 0 0 ? 0 0 0 0 ? 0 0 ? ? 0 ? 0 ? 0 0 ? 0 ? ? ? ? 0 ? 0 ? ? ? 0 ? ? ? ? ? ? ? ? ? ? 0 0 ? 0 0 ? ? ? 0 ? ? ? 0 0 ? ? ? 0 0 ? 0 ? 0 0 ? 0 ? x 0 0 0 0 ? 0 ? 0 ? 0 0 0 0 0 0 0 0 0 ? 0 0 0 0 0 0 0 0 0 0 0 0 0

0 - Probable Safe Block
? - Unknown Block
x - Potentially Malicious Block

Files Modified

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Files Modified

This section lists files that were created, modified, moved and/or deleted by samples in this family. File system activity can provide valuable insight into how malware functions on the operating system.

File	Attributes
c:\users\user\appdata\local\downloaded installations\{5153a73c-cee4-41f1-a222-8c9f3736f38d}\hdd regenerator.msi	Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144
c:\users\user\appdata\local\temp\_is66b2.tmp	Generic Write,Read Attributes
c:\users\user\appdata\local\temp\_is66e2.tmp	Generic Write,Read Attributes
c:\users\user\appdata\local\temp\_is6732.tmp	Generic Write,Read Attributes
c:\users\user\appdata\local\temp\_is685c.tmp	Generic Write,Read Attributes
c:\users\user\appdata\local\temp\_is729f.tmp	Generic Write,Read Attributes
c:\users\user\appdata\local\temp\_msi5166._is	Generic Read,Write Data,Write Attributes,Write extended,Append data
c:\users\user\appdata\local\temp\data0008.exe	Generic Write,Read Attributes
c:\users\user\appdata\local\temp\hr2011.exe	Generic Write,Read Attributes
c:\users\user\appdata\local\temp\{d517c977-e512-4f0e-acb4-b92f735dc664}\0x0409.ini	Generic Write,Read Attributes

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c:\users\user\appdata\local\temp\{d517c977-e512-4f0e-acb4-b92f735dc664}\_ismsidel.ini	Generic Write,Read Attributes
c:\users\user\appdata\local\temp\{d517c977-e512-4f0e-acb4-b92f735dc664}\hdd regenerator.msi	Generic Write,Read Attributes
c:\users\user\appdata\local\temp\{d517c977-e512-4f0e-acb4-b92f735dc664}\setup.ini	Generic Write,Read Attributes
c:\users\user\appdata\local\temp\~6731.tmp	Generic Write,Read Attributes
c:\users\user\appdata\local\temp\~729e.tmp	Generic Write,Read Attributes

Registry Modifications

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Registry Modifications

This section lists registry keys and values that were created, modified and/or deleted by samples in this family. Windows Registry activity can provide valuable insight into malware functionality. Additionally, malware often creates registry values to allow itself to automatically start and indefinitely persist after an initial infection has compromised the system.

Key::Value	Data	API Name
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::proxybypass		RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::intranetname		RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::uncasintranet		RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::autodetect		RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::proxybypass		RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::intranetname		RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::uncasintranet		RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::autodetect		RegNtPreCreateKey
HKLM\software\microsoft\windows nt\currentversion\notifications\data::418a073aa3bc3475	㵗 ȁ 獖}	RegNtPreCreateKey
HKLM\software\microsoft\windows nt\currentversion\notifications\data::418a073aa3bc1c75	�l 1HO@V�y�y�^�P���7 ����m����p�IV�$ �[��(! ��j� `�V ����Q]�� @ K�	RegNtPreCreateKey

Windows API Usage

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Windows API Usage

This section lists Windows API calls that are used by the samples in this family. Windows API usage analysis is a valuable tool that can help identify malicious activity, such as keylogging, security privilege escalation, data encryption, data exfiltration, interference with antivirus software, and network request manipulation.

Category	API
Anti Debug	IsDebuggerPresent NtQuerySystemInformation
User Data Access	GetUserObjectInformation
Process Manipulation Evasion	NtUnmapViewOfSection
Process Shell Execute	ShellExecute

Shell Command Execution

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Shell Command Execution

This section lists Windows shell commands that are run by the samples in this family. Windows Shell commands are often leveraged by malware for nefarious purposes and can be used to elevate security privileges, download and launch other malware, exploit vulnerabilities, collect and exfiltrate data, and hide malicious activity.

(NULL) C:\Users\Qehqwxbx\AppData\Local\Temp\hr2011.exe

(NULL) C:\Users\Qehqwxbx\AppData\Local\Temp\data0008.exe