Worm.Nohad.A

The detection of Worm.Nohad.A on your system indicates a potential security threat that requires immediate attention. This report provides an overview of the detected threat, its operating characteristics, symptoms of infection, and steps to remove it from your system.

What Is Worm.Nohad.A?

Worm.Nohad.A is a type of malicious software, or malware, that has been identified as a worm. Worms are self-replicating malware that can spread from system to system without the need for human interaction. They often exploit vulnerabilities in software or operating systems to infect new hosts. The name Worm.Nohad.A suggests it is a specific variant of malware, but without further information, its exact nature and capabilities can only be generalized from the characteristics of worms in general.

How Worm.Nohad.A Operates

Like other worms, Worm.Nohad.A is designed to replicate itself and spread to other systems. It may use various methods to propagate, including exploiting vulnerabilities in operating systems, applications, or using social engineering tactics to trick users into executing the malware. Once infected, a system can become a source of further infections, putting other systems at risk. Worms can also be used as a vector for other types of malware, such as Trojans or ransomware, making them a significant security threat.

Symptoms of Infection

Symptoms of a Worm.Nohad.A infection can vary, but common indicators include unusual system behavior, such as slow performance, frequent crashes, or unfamiliar programs running in the background. You might also notice increased network activity, as the worm attempts to spread to other systems. In some cases, no symptoms may be apparent, making regular system monitoring and antivirus scans crucial for early detection.

• Unexplained changes in system settings or files
• Appearance of unfamiliar programs or icons
• Increased pop-up ads or unexpected browser behavior
• System crashes or blue screen of death

How to Remove Worm.Nohad.A

1. Boot your system in Safe Mode with Networking to prevent the worm from loading and to allow for internet access for updates and scans.
2. Use a reputable anti-malware tool, such as SpyHunter, to perform a full scan of your system. Ensure the tool is updated with the latest definitions before scanning.
3. Uninstall any suspicious programs or applications that were installed around the time of the infection.
4. Reset your web browsers (Chrome, Firefox, Edge) to their default settings to remove any malicious extensions or settings changes.
5. After completing the above steps, reboot your system and perform another full scan with your anti-malware tool to ensure all traces of the worm have been removed.

Conclusion

Removing Worm.Nohad.A from your system requires careful and thorough steps to ensure all components of the malware are eliminated. It's crucial to stay vigilant and maintain good security practices, including keeping your operating system and software up to date, using strong antivirus protection, and being cautious with emails and downloads. Regular system backups can also help mitigate the impact of future infections. By following the removal steps outlined and maintaining a secure computing environment, you can help protect your system and data from Worm.Nohad.A and other malware threats.

Analysis Report

General information

Family Name:	Worm.Nohad.A
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: f20ae01a74f763aadb0f8255a82157df SHA1: d8d1dd355a98c4c444b5094663f70caf624c5a30 SHA256: 2C37B93FDE7CEDFDC6D328B43C532E9FD0C4B173A1BF7D4C6E0EAA54792790CE File Size: 4.09 MB, 4091515 bytes

MD5: 51d1f06f8f4750cbcba9279ddf9ad6b6 SHA1: 7cc3b10b165d905bfc5859d951df2c771ec97f9b SHA256: D6F2A5DCFF6B1375FA75D550C808DAA3F5A122D3EF9887361A1652479776E2B3 File Size: 3.81 MB, 3814020 bytes

MD5: c1c09298eebb9885553aba3087fce86f SHA1: e05816c52cb6956b763cdada7aec70731e407663 SHA256: 64DF5A36F4D9E147AFA85E697642488292DC2BC49C832821C3A01DC6A0A7F56C File Size: 4.09 MB, 4091591 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 has exports table
• File has TLS information
• File is 32-bit executable
• File is either console or GUI application
• File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)

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• File is Native application (NOT .NET application)
• File is not packed
• 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
Comments	www.facebook.com/llaneroinformatico
Company Name	Perú
File Description	Explorador de Windows
File Version	1.00 1.0.0.0
Internal Name	llanero solitario TJprojMain
Legal Copyright	llanero solitario
Legal Trademarks	llanero solitario
Original Filename	llanero solitario TJprojMain.exe
Product Name	llanero solitario Project1
Product Version	1.00 1.0.0.0

File Traits

• 2+ executable sections
• VirtualQueryEx
• 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.

Similar Families

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Similar Families

This section lists other families that share similarities with this family, based on EnigmaSoft’s analysis. Many malware families are created from the same malware toolkits and use the same packing and encryption techniques but uniquely extend functionality. Similar families may also share source code, attributes, icons, subcomponents, compromised and/or invalid digital signatures, and network characteristics. Researchers leverage these similarities to rapidly and effectively triage file samples and extend malware detection rules.

• InstallMonstr.B

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\roaming\microsoft\windows\start menu\programs\startup\nottepad.exe	Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144
c:\users\user\appdata\roaming\microsoft\windows\start menu\programs\startup\nottepad.exe	Synchronize,Write Attributes
c:\users\user\documen	Synchronize,Write Attributes
c:\users\user\documen\nod42.exe	Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144
c:\users\user\documen\nod42.exe	Synchronize,Write 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\explorer\advanced::hidden		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

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
Other Suspicious	SetWindowsHookEx
Process Manipulation Evasion	NtUnmapViewOfSection
Process Shell Execute	ShellExecute
User Data Access	GetUserObjectInformation

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.

open C:\Users\Gcdogrhb\Documen\nod42.exe

open c:\users\user\downloads\7cc3b10b165d905bfc5859d951df2c771ec97f9b_0003814020