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Recent cybersecurity reports reveal a significant rise in infostealer malware attacks, with these stealthy threats now accounting for nearly a quarter of all cyber incidents, highlighting the importance of protecting against infostealers.
As organizations struggle to defend against this growing threat, practical protection measures have become essential.
Cybercriminals have increasingly pivoted to stealthier tactics, with a significant spike in phishing emails delivering infostealer malware. This shift represents one of the most dangerous emerging threats facing businesses and individuals.
The Rising Tide of Infostealer Attacks
Infostealer malware, explicitly designed to extract sensitive information from infected systems, has become alarmingly prevalent. Recent statistics paint a concerning picture of this escalating threat:
One cybersecurity company monitoring over 3 million endpoints worldwide reports that infostealers drove nearly 24% of all cyber incidents in 2024, outpacing malicious scripts and traditional malware.
Meanwhile, other industry reports documented a 58% growth in infostealer attacks during 2024.
Perhaps most alarming is data revealing that throughout 2024, cybercriminals stole 3.2 billion credentials, with an astounding 75% (2.1 billion) taken through infostealer malware attacks. This represents a 33% increase in compromised passwords compared to previous years.
How Infostealers Operate
InfoStealer malware plays a key role in many cyber attacks, enabling extortion and lateral movement via stolen credentials. These malicious programs employ various techniques to harvest sensitive information, including:
- Keylogging: Recording keystrokes to capture passwords and other sensitive input
- Form grabbing: Intercepting data submitted in web forms before encryption
- Clipboard hijacking: Monitoring and stealing copied information, even from password managers
- Screen capturing: Taking screenshots at critical moments when viewing sensitive information
- Browser session hijacking: Stealing cookies and session tokens to impersonate legitimate users
Once installed, infostealers operate quietly in the background, making them difficult to detect with traditional security tools. They target everything from login credentials and banking details to browser data and cryptocurrency wallets.
The Changing Landscape
The infostealer threat landscape continues to evolve rapidly. Detections of specific infostealer variants have increased 369% between the first and second halves of 2024. Meanwhile, newer variants have grown from 1.4% of all infections in 2023 to 22.45% in 2024.
Seventy percent of all infostealer-infected devices are personal rather than corporate, highlighting how attackers target personal devices to access corporate resources through Bring Your Device (BYOD) entry points.
Practical Protection Measures
As the threat grows, cybersecurity experts recommend several practical measures to protect against infostealer attacks:
- Implement Virtual Desktop Infrastructure (VDI): Solutions like Citrix or VMware create virtual environments that prevent direct access to internal systems from local devices, significantly reducing session hijacking risks.
- Deploy Endpoint Detection and Response (EDR): Modern EDR solutions can monitor endpoints for suspicious activities characteristic of infostealer infections.
- Strengthen Authentication: Implement strong Multi-Factor Authentication (MFA) across all systems, especially for remote access. However, remember that infostealers can potentially steal MFA tokens as well.
- Reduce Session Token Validity: Limiting the lifespan of session tokens decreases the window of opportunity for attackers to use stolen credentials.
- Exercise Search Caution: Recent attacks have utilized specific keywords like “free,” “download,” and “pdf” to lure victims. Be particularly vigilant when searching for or downloading content with these terms.
- Deploy Email Filtering: Advanced email security solutions can help identify and block phishing attempts that deliver infostealer payloads.
- Consider Secure Browsers: Specialized secure browsers keep infections contained within controlled environments, limiting access to local or corporate systems.
A Growing Concern
With the average data breach cost reaching $4.88 million in 2024, the highest on record, organizations cannot afford to ignore the infostealer threat.
As remote work becomes permanent and digital transformation accelerates, the attack surface for these stealthy threats continues to expand.
Infostealers aren’t just a passing trend but a cornerstone of modern cyber threats. By implementing these practical protection measures, individuals and organizations can significantly reduce their risk of becoming the following infostealer statistic.
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The post Protecting Against Info-Stealers – A Practical Resource appeared first on Cyber Security News.
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