Description
Cisco Security Intelligence Operations has detected significant activity related to spam e-mail messages that claim to contain an inquiry from the Better Business Bureau for the recipient. The text in the e-mail message attempts to convince the recipient to open the attachment to print and answer the questions on the attached form. However, the .zip attachment contains a malicious .exe file that, when executed, attempts to infect the system with malicious code.
E-mail messages that are related to this threat (RuleID5542) may contain the following files:
BBB SBQ Form.zip
BBB SBQ Form.exe
The BBB SBQ Form.exe file in the BBB SBQ Form.zip attachment has a file size of 142,336 bytes. The MD5 checksum, which is a unique identifier of the executable, is the following string: 0x3BD5EB0193811BEBB2770B2D62958307
The following text is a sample of the e-mail message that is associated with this threat outbreak:
Subject: BBB SBQ Form #639558555(Ref#25-639558555-0-4)
Message Body:
Thank you for supporting your Better Business Bureau (BBB).
As a service to BBB Accredited Businesses, we try to ensure that the information we provide to potential customers is as accurate as possible. In order for us to provide the correct information to the public, we ask that you review the information that we have on file for your company.
We encourage you to print this SBQ Form, answer the questions and respond to us. (self-extracting archive, Adobe PDF)
Please look carefully at your telephone and fax numbers on this sheet, and let us know any and all numbers used for your business (including 800, 900, rollover, and remote call forwarding). Our automated system is driven by telephone/fax numbers, so having accurate information is critical for consumers to find information about your business easily.
Thank you again for your support, and we look forward to receiving this updated information.
Sincerely,
Accreditation Services
Source: Cisco