Melissa AKA TROJ_CAPTCHAR.A
At first glance you may be forgiven for thinking that Melissa is nothing more than a naughty little tease.
In reality, she’s just plain naughty.
TROJ_CAPTCHAR.A comes disguised as a small strip-tease game featuring ‘Melissa’ who begins by wearing very little and promising to slowly remove what’s left.
Getting Naked
Aimed at young pubescent boys pretty well any hot blooded male, Melissa makes you work in return for peeling her clothes off – users must identify and enter the letters on the attached CAPTCHA.
On the face of it, this may seem quite harmless but, in reality, the answers to the CAPTCHAs are being sent to a remote server where a malicious user patiently awaits them.
The strip-tease game is actually a ploy by ingenious malware authors to identify and match ambiguous CAPTCHA images from legitimate sites, using the unsuspecting user as the decoder of the said image.
(The following image was acquired purely for educational purposes, honest!)
The CAPTCHA above originated from Yahoo! which may indicate that someone is purposefully targeting Yahoo! accounts.
The reason for this is unknown, though it could well be for spamming purposes.
If so, it certainly signifies an interesting (and eye-catching) new method of circumventing anti-spamming measures.
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Col makes me laugh, don’t scare him away!
As someone who can’t read I have to say you do a grand job of providing me with good picture content
I give up with you, I really do
I don’t think there’s much fear of that, though he has been a little shy recently.