Possible DNS Changer malware on 9 July.

bilzmale

Super Moderator Emeritus
Jul 17, 2010
124
Perth, Western Australia
Bill Shinnick
This is a security bulletin from the MCT-SafeComputing-List.
A copy of the text of this email for verification - which may include
further updates is at:
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Bulletin ID (also shown on web version): DCLR-8VXDDX

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B U L L E T I N
On Monday, July 9, the DNS Changer 'internet blackout' will take place;
hundreds of thousands of computer users could potentially be affected, if
they don't take action now.

A Sophos video explaining the issue is linked to the page below.

DNSChanger Malware causes a computer to use rogue DNS servers in one of two
ways.

1) It changes the computer’s DNS server settings to replace the ISP’s good
DNS servers with rogue DNS servers operated by the criminal.
2) It attempts to access devices on the victim’s small office/home office
(SOHO) network that run a dynamic host configuration protocol (DHCP) server
(eg. a router or home gateway). The malware attempts to access these
devices using common default usernames and passwords and, if successful,
changes the DNS servers these devices use from the ISP’s good DNS servers
to rogue DNS servers operated by the criminals. This is a change that may
impact all computers on the SOHO network, even if those computers are not
infected with the malware.

The DNS Changer Working Group (DCWG), a cross-industry team of experts, has
created a number of websites which offer to tell you automatically if your
computer might have been affected by the DNS Changer malware. The DCWG test
page site is also linked below.
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W E B L I N K S
Sophos:
DNS Changer – how not to lose your internet connection on July 9 [VIDEO] | Naked Security

DCWG: Detect | DCWG
DCWG test page: DNS Changer Check-Up - Clean
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firewall and a spyware inhibitor and to check for system updates regularly.

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O U A N N O U N C E M E N T S

Network Security Course T828:
T828 - Network security - Open University Course

Security Management Course M886:
M886 - Information security management - Open University Course

Forensic Computing Course M889:
M889 - Computer forensics and investigations - Open University Course
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L I N K S

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(The WCG harnesses the spare computing power on computers worldwide to
assist in humanitarian research projects)

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