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New Variant of Banking Trojan Discovered Targeting Mexico

Since August 2022, Mispadu has been behind numerous spam campaigns, resulting in the theft of over 90,000 bank account credentials.
In a recent discovery, cybersecurity researchers from Palo Alto Networks Unit 42 have uncovered a new variant of the stealthy banking Trojan known as Mispadu Stealer. This infostealer is specifically designed to target regions and URLs associated with Mexico, posing a significant threat to users in the region. 

The researchers stumbled upon this new variant while conducting investigations into attacks exploiting the Windows SmartScreen bypass vulnerability CVE-2023-36025. This vulnerability has been a prime target for cybercriminals looking to bypass security measures and infiltrate systems. However, it was addressed by Microsoft in November 2023. 

How You Are Being Attacked?

Essentially, attackers exploit a flaw in Windows SmartScreen, a security feature designed to warn users about potentially harmful downloads. By crafting internet shortcut files (.URL) or hyperlinks that point to malicious content, they can evade SmartScreen's defenses. This evasion tactic hinges on including a parameter that points to a network share rather than a standard URL. Inside the manipulated.URL file is a link leading to a network share controlled by the threat actor, housing a dangerous executable file. 

Since August 2022, Mispadu has been behind numerous spam campaigns, resulting in the theft of over 90,000 bank account credentials. This revelation highlights the significant threat Mispadu poses to the financial security of users across Latin America. However, Mispadu is just one member of a larger family of LATAM banking malware. 

Among its notorious counterparts is Grandoreiro, a formidable threat that has plagued users in the region. Recent efforts by law enforcement authorities in Brazil have resulted in the dismantling of Grandoreiro, offering some relief to users. 

Despite this success, cybersecurity experts warn that the danger from Mispadu and similar malware persists. Users are urged to remain vigilant when dealing with unsolicited emails and to bolster their defenses with robust security measures. By staying informed and implementing proactive strategies, users can better protect themselves against potential attacks.
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