On February 16, Adobe released a security advisory describing a vulnerability in Adobe Reader and Acrobat 8.X and 9.X. Once the vulnerability is exploited, attackers gain the capability to perform denial-of-service (DoS) attacks on affected systems. Doing so can cause applications and even systems to crash. Attackers can also execute arbitrary code on affected systems.
Trend Micro detects the exploit binary as TROJ_PIDIEF.EXP, a specially crafted .PDF file. It belongs to a family of known exploits that target Adobe Acrobat and Reader vulnerabilities. This family is also capable of dropping other malicious files such as spyware and backdoors onto affected systems.
Users are advised to update to the latest versions of the aforementioned Adobe products to secure their systems from attacks related to this vulnerability.
Trend Micro™ Smart Protection Network™ protects product users from this threat by detecting and executing the malicious file via the file reputation service.