How to remove Chihuahua Stealer

What is Chihuahua Stealer

Chihuahua Stealer is a sophisticated .NET-based information stealer targeting Windows systems, primarily designed to harvest sensitive data from web browsers and cryptocurrency wallet extensions. Cybercriminals deploy this malware to extract login credentials, stored cookies, autofill data, browsing history, and even payment details such as credit cards. Its focus on crypto wallet extensions allows attackers to access private keys and seed phrases, posing a substantial risk to digital assets. Once data is collected, Chihuahua Stealer saves it in a local folder, compresses it into a .zip file with a “.chihuahua” extension, encrypts the archive, and exfiltrates it to an attacker-controlled server. Infection often occurs via malicious email attachments, cloud-shared script files, pirated software, or fake cracking tools. Victims may not notice any obvious symptoms, as the malware is engineered to operate stealthily in the background. Consequences of an infection include account hijacking, identity theft, financial loss, and unauthorized cryptocurrency transfers. Prompt detection and removal are critical to prevent the compromise of personal and financial information.

How Chihuahua Stealer infected your system

Chihuahua Stealer is a sophisticated malware that infiltrates computers primarily through deceptive means, exploiting the user’s unwitting actions. It often arrives via malicious documents shared through cloud services like Google Drive, where hidden PowerShell scripts initiate its deployment. This malware also spreads through other common vectors such as phishing emails containing harmful attachments or links, malicious online advertisements, and software vulnerabilities. Additionally, users who download pirated software, use cracking tools, or interact with fake technical support scams are at increased risk of infection. Once on a system, Chihuahua Stealer stealthily collects sensitive information from web browsers and cryptocurrency wallet extensions, posing a significant threat to user privacy and digital assets. To mitigate the risk of infection, users should exercise caution in handling unsolicited emails and suspicious downloads, maintain updated security software, and avoid engaging with potentially harmful content online.

1. Download Chihuahua Stealer Removal Tool
2. Use Windows Malicious Software Removal Tool to remove Chihuahua Stealer
3. Use Autoruns to remove Chihuahua Stealer
4. Files, folders and registry keys of Chihuahua Stealer
5. Other aliases of Chihuahua Stealer
6. How to protect from threats, like Chihuahua Stealer

Remove Chihuahua Stealer manually

Manual removal of Chihuahua Stealer by inexperienced users may become a difficult task because it does not create entries in Add/Remove Programs under Control Panel, does not install browser extensions, and uses random file names. However, there are pre-installed instruments in the Windows system, that allow you to detect and remove malware without using third-party applications. One of them is Windows Malicious Software Removal Tool. It comes with Windows Update in Windows 11, 10, 8. 8.1. For older operating system you can download it here: 64-bit version | 32-bit version.

Remove Chihuahua Stealer using Windows Malicious Software Removal Tool

1. Type mrt in the search box near Start Menu.
2. Run mrt clicking on found item.
3. Click Next button.
4. Choose one of the scan modes Quick scan, Full scan, Customize scan (Full scan recommended).
5. Click Next button.
6. Click on View detailed results of the scan link to view the scan details.
7. Click Finish button.

Remove Chihuahua Stealer using Autoruns

Chihuahua Stealer often sets up to run at Windows startup as an Autorun entry or Scheduled task.

1. Download Autoruns using this link.
2. Extract the archive and run Autoruns.exe file.
3. In Options menu make sure there are checkboxes near Hide Empty Locations, Hide Microsoft Entries, and Hide Windows Entries.
4. Search for suspicious entries with weird names or running from locations like: C:\{username}\AppData\Roaming.
5. Right-click on suspicious entry and choose Delete. This will prevent the threat to run at startup.
6. Switch to Scheduled Tasks tab and do the same.
7. To remove files themselves, click on suspicious entries and choose Jump to Entry…. Remove files or registry keys found.

Remove files, folder and registry keys of Chihuahua Stealer

Chihuahua Stealer files and folders


{randomname}.exe


Chihuahua Stealer registry keys


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Aliases of Chihuahua Stealer

How to protect from threats, like Chihuahua Stealer, in future

Standard Windows protection or any decent third-party antivirus (Norton, Avast, Kaspersky) should be able to detect and remove Chihuahua Stealer. However, if you got infected with Chihuahua Stealer with existing and updated security software, you may consider changing it. To feel safe and protect your PC from Chihuahua Stealer on all levels (browser, e-mail attachments, Word or Excel scripts, file system) we recommend a leading provider of internet security solutions – BitDefender. Its solutions both for home and business users proved to be one of the most advanced and effective. Choose and get your BitDefender protection via the button below:

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