Trojan.Kryptik.BRGH

The detection of Trojan.Kryptik.BRGH 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 operational mechanisms, symptoms of infection, and most importantly, steps to remove it from your computer.

What Is Trojan.Kryptik.BRGH?

Trojan.Kryptik.BRGH is identified as a Trojan-type threat. Trojans are malicious programs that disguise themselves as legitimate software but are designed to allow unauthorized access to a computer system. They can be used to steal sensitive information, install additional malware, or disrupt system operation. The name "Trojan.Kryptik.BRGH" suggests it may involve encryption or stealth capabilities, but without specific details, it's crucial to approach removal with a broad strategy.

How Trojan.Kryptik.BRGH Operates

Trojans like Trojan.Kryptik.BRGH typically operate by deceiving users into installing them, often by masquerading as useful applications or as part of a software bundle. Once installed, they can create backdoors for remote access, allowing attackers to control the infected system, steal data, or use the system for malicious activities such as spamming or as part of a botnet. The exact mechanisms of Trojan.Kryptik.BRGH are not specified, but understanding the general behavior of Trojans helps in devising an effective removal strategy.

Symptoms of Infection

Symptoms of a Trojan infection can vary widely but may include unusual system behavior such as slow performance, frequent crashes, or the appearance of unwanted programs or toolbars in your browser. You might also notice that your antivirus software is disabled or that your browser settings have been altered without your consent. Sometimes, infections can be asymptomatic, making regular system scans crucial for detection.

How to Remove Trojan.Kryptik.BRGH

1. Boot into Safe Mode with Networking: This will limit the malware's ability to interfere with the removal process. To do this, restart your computer and press the key to access your boot menu (this key varies by manufacturer but is often F8, F12, or Del), then select Safe Mode with Networking.
2. Perform a Full Scan with a Reputable Tool: Use an anti-malware tool like SpyHunter to scan your system thoroughly. Ensure the tool is updated to the latest version to improve detection and removal capabilities.
3. Uninstall Suspicious Programs: Go through your list of installed programs and remove any that you don't recognize or that were installed around the time your system started showing symptoms of infection.
4. Reset Your Browsers: Resetting your browsers (Google Chrome, Mozilla Firefox, Microsoft Edge) to their default settings can help remove any malicious extensions or settings changes made by the Trojan.
5. Reboot and Re-scan: After completing the above steps, restart your computer in normal mode and perform another full scan with your anti-malware tool to ensure the threat has been fully removed.

Conclusion

Removing Trojan.Kryptik.BRGH requires careful and systematic steps to ensure the malware is completely eradicated from your system. It's also essential to adopt preventive measures to avoid future infections, such as being cautious with email attachments and downloads, keeping your operating system and software up to date, and regularly scanning your system with reputable security tools. By following the removal steps outlined and maintaining good cybersecurity practices, you can protect your system and data from threats like Trojan.Kryptik.BRGH.

Analysis Report

General information

Family Name:	Trojan.Kryptik.BRGH
Signature status:	Hash Mismatch

Known Samples

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Known Samples

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

MD5: ff5c51916451189e168ccf1e7d3d1285 SHA1: 4d5b1586185d8ac6c700d175d22a577cd4659a60 SHA256: 4750096840542ABC8BA9EEA6BF5BE50F3A59F3DC52FC661855B8293962F6C32D File Size: 127.49 KB, 127487 bytes

MD5: 382e205b7b468ecc565e49a959a93616 SHA1: 9e1ef0be3cc14c5977f56feb00281bfec3c28c7e SHA256: DAD839E2F7917C867EBEC21A344322139DCAA1AA74D3C25BF5CBD0AC0E0BA651 File Size: 128.25 KB, 128255 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 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
• IMAGE_FILE_DLL is not set inside PE header (Executable)

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• 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
Company Name	Hewlett-Packard
File Description	hpwuSchd Application
File Version	80, 1, 1, 0
Internal Name	hpwuSchd
Legal Copyright	Copyright (C) Hewlett-Packard 2007
Original Filename	hpwuSchd.exe
Product Name	hpwuSchd Application
Product Version	80, 1, 1, 0

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
Hewlett-Packard Company	VeriSign Class 3 Code Signing 2004 CA	Hash Mismatch
Hewlett-Packard Company	VeriSign Class 3 Code Signing 2010 CA	Hash Mismatch

File Traits

• big overlay
• 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:	143
Potentially Malicious Blocks:	9
Whitelisted Blocks:	123
Unknown Blocks:	11

Visual Map

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 1 0 0 1 0 0 0 0 0 0 0 0 0 1 0 x x 0 0 0 x x x 0 ? 0 0 x ? ? x 0 ? ? ? x ? ? x ? ? ? 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 1 0 0 0 2 2 0 0 1 0 0 1 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 2 1

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:\program files\common files\system\symsrv.dll	Generic Write,Read Attributes
c:\program files\common files\system\symsrv.dll.000	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\5.0\cache\content::cacheprefix		RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\5.0\cache\cookies::cacheprefix	Cookie:	RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\5.0\cache\history::cacheprefix	Visited:	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
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

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HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::autodetect		RegNtPreCreateKey
HKLM\software\wow6432node\microsoft\windows nt\currentversion\windows::appinit_dlls	C:\PROGRA~1\COMMON~1\System\symsrv.dll	RegNtPreCreateKey
HKLM\software\wow6432node\microsoft\windows nt\currentversion\windows::loadappinit_dlls		RegNtPreCreateKey
HKLM\software\wow6432node\microsoft\windows nt\currentversion\windows::requiresignedappinit_dlls		RegNtPreCreateKey