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Sober
(W32/Sober.j@MM/W32.Sober.i@mm)
Computer security experts are warning users to be
cautious of opening unsolicited e-mail attachments as a new Sober-I
variant have begun to appear. The virus places two small files into the memory
of any machine that it infects, if either one of these files are manually
deleted, its partner will resurrect the missing file. The virus also cleverly
adds text to the messages it travels in that claims the e-mail has been scanned
and found clean by anti-virus programs. Once a machine is infected the mass
mailing virus searches a Windows machine for addresses and then uses its own
built-in e-mail software to send itself to potential new victims.
What to do if you suspect you may have
the virus?
1. Provided the attachment has not been opened, the mail
should be ignored and deleted.
2. If you think you may have accidentally
opened the attachment, we would recommend that you
check
you
are
using the latest
virus definitions for your antivirus software and
then manually scan your system for viruses.
Mail messages seen so far have been identified
containing the following subject lines (although these
are random
so may change)
- Fwd: Mail delivery_failed <1881>
- Fwd: Re: Registration
confirmation
- Fwd: Mail_Delivery_failure
- FwD: Confirmation
- Details
- Registration
Confirmation
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- Your mail password
- invalid mail
- Mail delivery_failed
- Re: Delivery_failure_notice
- Re: illegal
signs in your mail
- Your Password
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The
body of the message is also randomly generated, with
around half containing a ’*-*-*’ string toward the end.
For example...
*-*-* Mail_Scanner:
No Virus
*-*-* VAXXINE- Anti_Virus Service
*-*-* http://www.vaxxine.com |
*Free
Removal Tools:
- McAfee
has developed a removal
tool (called Stinger) to clean the infections of
Sober as well as other well known infections
- Symantec
Security Response has developed a removal
tool to clean the infections of Sober.
*Note: While
Symantec and McAfee make these removal tools available
for free, they are by no means a substitute for
full anti-virus protection. If you choose to use
the removal tools above, be careful to follow the instructions
for using these tools exactly. If you don't understand
how
to use them, you could potentially make your system unstable
or worse, unusable! If you have any doubts, call
Vaxxine to have your system repaired BEFORE you endeavour
to
fix it yourself. Depending on the extent of your infection,
Vaxxine can usually remove the problem for a modest fee.
If you attempt to fix it yourself and fail, repair afterwards
may prove to be a more costly option. Please call Vaxxine
Tech Support to make an
appointment at 905-685-1539 (select
option 3).
More
detailed information about this virus is available
from Symantec and McAfee web
sites
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