Posts Tagged ‘random company’

Cutwail Drives Spike in Malicious HTML Attachment Spam

Feb

2012

Over the past month, we have observed several large spam campaigns with malicious HTML attachments. We believe the botnet behind these campaigns is Cutwail. Here is data we collected, starting from the first day of 2012, illustrating spikes of spam with malicious HTML attachments: Attaching an HTML file to an email is a tactic we […]

Category Security Written by M86 Security Labs Blog 0 Comments

Blocking a Malware-spam Attack, Before it Happens

Sep

2011

An interesting malware attack showed up in two of my honeypots one morning this week. I then received a third copy from a co-worker later that morning, so I did a little research to gather enough data for a blog post. The e-mails are interesting, since they purport to be simple bills or invoices (“pending […]

Category Security Written by Blue Coat 0 Comments

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Posts Tagged ‘random company’

Cutwail Drives Spike in Malicious HTML Attachment Spam

Blocking a Malware-spam Attack, Before it Happens

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