"It has emerged in the last week that another of those
rare Linux viruses may be on the loose. And this one has strong
similarities to October's Remote Shell Trojan (RST) that was
largely dismissed by the Linux community.
In a posting to a security mailing list at the end of December,
SecurityFocus brought 'RST.b' to the internet community's
The researchers warned that the culprit carrying the virus is
likely to be "some exploit being passed around, possibly a Secure
Shell one". Linux users are advised not to run exploits
[sic] from unknown sources.
Once it has gained a foothold into the system, it installs a
back door and attempts to escalate its permissions to root
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