PUA_GOOBZO

This potentially unwanted application arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

It executes the downloaded files. As a result, malicious routines of the downloaded files are exhibited on the affected system.

Arrival Details

This potentially unwanted application arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Download Routine

This potentially unwanted application saves the files it downloads using the following names:

• %User Temp%\Install_{random number}\ins_yta.exe

(Note: %User Temp% is the user's temporary folder, where it usually is C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Local\Temp on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)

It then executes the downloaded files. As a result, malicious routines of the downloaded files are exhibited on the affected system.

Other Details

This potentially unwanted application connects to the following possibly malicious URL:

• http://{BLOCKED}e4o0c4u2.cloudfront.net/{random number}.ashx?e={value}
• http://{BLOCKED}q53d84jx.cloudfront.net/t.ashx?e={value}
• http://{BLOCKED}oqjsg4c.cloudfront.net/install.ashx?e={value}
• http://{BLOCKED}8gjlk71j.cloudfront.net/yta33_full.exe