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HomeTopics 1Advanced Persistent ThreatShadowy Operator: New Android Trojan "SoumniBot" Evades Detection with Cunning Techniques

Shadowy Operator: New Android Trojan “SoumniBot” Evades Detection with Cunning Techniques


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Android users beware! A recent report from Kaspersky Lab unveils a cunning new foe: a Trojan dubbed “SoumniBot” specifically targeting South Korean users. This malware utilizes novel obfuscation techniques to evade detection, making it a significant threat to user privacy and data security.

Let’s delve deeper into SoumniBot’s functionalities, explore its evasion tactics, and offer crucial advice to safeguard your Android devices.

SoumniBot’s Malicious Intent: Stealing User Data Under the Radar

SoumniBot operates under the guise of a legitimate app, tricking users into installing it. Once installed, it establishes a persistent presence on the device and initiates its malicious activities. Here’s what SoumniBot is designed to do:

  • Data Exfiltration: SoumniBot can steal a range of sensitive user data, including contact lists, SMS messages, photos, videos, and a list of installed applications.
  • Device Information Collection: The malware gathers information about the infected device, such as its model, operating system version, and unique identifiers.
  • Command and Control Server Communication: SoumniBot communicates with a remote server controlled by attackers, potentially receiving further instructions or uploading stolen data.

A Master of Deception: SoumniBot’s Evasion Techniques

What truly sets SoumniBot apart is its ability to evade detection:

  • Android Manifest Obfuscation: SoumniBot obfuscates its manifest file, a critical component that reveals an app’s functionalities and permissions. This hinders traditional security analysis tools from identifying its malicious behavior.
  • Runtime Code Decryption: The malware decrypts its malicious code at runtime, making static analysis, which examines the code before execution, less effective in detecting its true purpose.
  • Scheduled Data Uploads: SoumniBot uploads stolen data to the attacker’s server every 15 seconds, potentially minimizing the risk of detection by security solutions that rely on larger data transfers to trigger alerts.

10 Ways to Shield Your Android Device from SoumniBot and Similar Threats

While SoumniBot poses a challenge, these measures can significantly enhance your Android device’s security:

  1. Download with Caution: Only download applications from trusted sources, such as the official Google Play Store. Be wary of downloading apps from third-party marketplaces.
  2. Scrutinize App Permissions: Pay close attention to the permissions requested by an app before installation. If an app requests excessive permissions that seem unrelated to its intended function, raise a red flag.
  3. Keep Software Updated: Maintain your Android device’s operating system and installed applications updated with the latest security patches. These updates often address newly discovered vulnerabilities that malware can exploit.
  4. Utilize a Reputable Antivirus Solution: Consider installing a reputable antivirus or mobile security solution on your device to provide real-time protection against malware and other threats.
  5. Beware of Phishing Attempts: Phishing emails and SMS messages can be used to trick users into downloading malware disguised as legitimate apps. Be cautious of clicking on links or attachments from unknown senders.
  6. Enable Two-Factor Authentication (2FA): Whenever possible, enable two-factor authentication for your online accounts. This adds an extra layer of security beyond just a password.
  7. Back Up Your Data Regularly: Regularly back up your important data to a secure external storage location. This ensures you have a copy of your data in case your device gets compromised by malware.
  8. Be Wary of Unidentified Calls and Texts: Don’t engage with phone calls or text messages from unknown numbers, especially if they prompt you to download unknown applications.
  9. Review App Reviews and Ratings: Before installing an app, take some time to read user reviews and ratings. While not foolproof, negative reviews mentioning suspicious behavior can be a warning sign.
  10. Stay Informed about Security Threats: Stay updated on emerging cybersecurity threats and malware trends. This allows you to be more vigilant and identify potential red flags.


SoumniBot’s emergence highlights the evolving tactics of mobile malware developers. By prioritizing security practices, utilizing reputable security solutions, and remaining vigilant, Android users can significantly reduce the risk of falling victim to such sophisticated threats. Remember, a proactive approach to cybersecurity is essential for protecting your privacy and data security in today’s ever-changing digital landscape.

Ouaissou DEMBELE
Ouaissou DEMBELEhttps://cybercory.com
Ouaissou DEMBELE is an accomplished cybersecurity professional and the Editor-In-Chief of cybercory.com. He has over 10 years of experience in the field, with a particular focus on Ethical Hacking, Data Security & GRC. Currently, Ouaissou serves as the Co-founder & Chief Information Security Officer (CISO) at Saintynet, a leading provider of IT solutions and services. In this role, he is responsible for managing the company's cybersecurity strategy, ensuring compliance with relevant regulations, and identifying and mitigating potential threats, as well as helping the company customers for better & long term cybersecurity strategy. Prior to his work at Saintynet, Ouaissou held various positions in the IT industry, including as a consultant. He has also served as a speaker and trainer at industry conferences and events, sharing his expertise and insights with fellow professionals. Ouaissou holds a number of certifications in cybersecurity, including the Cisco Certified Network Professional - Security (CCNP Security) and the Certified Ethical Hacker (CEH), ITIL. With his wealth of experience and knowledge, Ouaissou is a valuable member of the cybercory team and a trusted advisor to clients seeking to enhance their cybersecurity posture.


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