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Paul Wood, Symantec: Spammers are Taking Advantage of New Year Holidays
and Major Events
January 27, 2012
The
January Symantec Intelligence Report shows that spammers are using
holidays and major events to make their mail more appealing.
January Symantec Intelligence Report PDF
Symantec Intelligence has seen more than 10,000 unique domain names
compromised with a redirect script written in PHP that contains a
reference to the New Year in the file name. These redirect scripts were
hosted on compromised Web sites and links to these were included in spam
emails, which were subsequently blocked by Symantec.cloud.
To further entice recipients to open their messages, spammers used
additional social engineering techniques by including parameters in the
URL to suggest that the destination is a social networking site.
Symantec Intelligence expects to see spammers taking advantage of other
upcoming “calendar events” with one of the most important traditional
Chinese New Year celebrations starting this week and continuing for
several days, as well as the fast-approaching Valentine's Day.
“We also expect to see plenty of spam and malware taking advantage of
some of the major upcoming sporting events this year. We are already
seeing references to the Summer Olympics in London as part of 419 or
advance fee fraud messages,” said Paul Wood, senior intelligence
analyst, Symantec.
“By relating their mails to widely-celebrated holidays and current
events with global interest, spammers and malware authors can (at first
glance at least) make their messages more interesting, and increase the
chance of recipients visiting spam Web sites or becoming infected,” Wood
said.
During December, global spam levels dropped, but in January gradually
returned to similar levels as in November 2011, which is still lower
than the 2011 average.
Other Report
Highlights:
Spam: In January 2012, the global ratio of spam in email
traffic rose by 1.3 percentage points since December 2011, to 69.0
percent (1 in 1.45 emails). This follows a more noticeable drop in
December when spam fell by 2.8 percentage points to 67.7 percent. The
recent increase means that spam has almost returned to the same level as
in November 2011.
Phishing: In
January, the global phishing rate increased by 0.06 percentage points,
taking the average to one in 370.0 emails (0.27 percent) that comprised
some form of phishing attack.
Email-borne Threats:
The global ratio of email-borne viruses in email traffic was one in
295.0 emails (0.33 percent) in January, a decrease of 0.02 percentage
points since December 2011. In January, 29.0 percent of email-borne
malware contained links to malicious Web sites, unchanged since December
2011.
Web-based Malware Threats:
January saw an average of 2,102 Web sites each day harboring malware and
other potentially unwanted programs including spyware and adware; a
decrease of 77.4 percent since December 2011.
Endpoint Threats:
The most frequently blocked malware for the last month was
WS.Trojan.H.
WS.Trojan.H is generic cloud-based heuristic detection for files that
posses characteristics of an as yet unclassified threat. Files detected
by this heuristic are deemed by Symantec to pose a risk to users and are
therefore blocked from accessing the computer.
Geographical Trends:
Spam
-
Saudi
Arabia became the most spammed geography in January; with a spam
rate of 75.5 percent.
- China was the second
most-spammed with 75.0 percent of email traffic blocked as spam.
- In the US, 69.0 percent
of email was spam and 68.7 percent in Canada.
- The spam level in the UK
was 69.3 percent.
- In The Netherlands, spam
accounted for 70.7 percent of email traffic, 68.2 percent in
Germany, 69.1 percent in Denmark and 68.6 percent in Australia.
- In Hong Kong, 67.5
percent of email was blocked as spam and 66.7 percent in
Singapore, compared with 65.6 percent in Japan.
- Spam accounted for 69.5
percent of email traffic in South Africa and 73.1 percent in
Brazil.
Phishing
- The Netherlands became
the country most targeted for phishing attacks in January, with
one in 62.6 emails identified as phishing.
- The UK was the second
most targeted country, with one in 179.4 emails identified as
phishing attacks.
- Phishing levels for the
US were one in 1,145 and one in 379.9 for Canada.
- In Germany phishing
levels were one in 797.6, one in 330.9 in Denmark.
- In Australia, phishing
activity accounted for one in 542.2 emails and one in 942.9 in
Hong Kong; for Japan it was one in 5,692 and one in 1,156 for
Singapore.
- In Brazil one in 1,007
emails was blocked as phishing.
E-mail-borne Threats
- The Netherlands had the
highest ratio of malicious emails in January, with one in 61.4
emails identified as malicious.
- The UK had the second
highest rate, with one in 169.1 emails identified as malicious.
- In South Africa, one in
305.9 emails was blocked as malicious.
- The virus rate for
email-borne malware in the US was one in 592.5 and one in 285.4
in Canada.
- In Germany virus activity
reached one in 471.7 and one in 318.1 in Denmark.
- In Australia, one in
327.9 emails was malicious.
- For Japan the rate was
one in 1,573, compared with one in 482.9 in Singapore.
- In Brazil, one in 681.7
emails in contained malicious content.
Vertical Trends:
- The Education sector
became the most spammed industry sector in January, with a spam
rate of 71.0 percent.
- The spam rate for the
Chemical & Pharmaceutical sector was 69.0 percent, compared with
68.7 percent for IT Services, 68.4 percent for Retail, 68.9
percent for Public Sector and 68.2 percent for Finance.
- The Public Sector
remained the most targeted by phishing activity in January, with
one in 99.1 emails comprising a phishing attack.
- Phishing levels for the
Chemical & Pharmaceutical sector reached one in 838.0 and one in
647.8 for the IT Services sector, one in 529.4 for Retail, one
in 169.4 for Education and one in 253.7 for Finance.
- With one in 90.2 emails
being blocked as malicious, the Public Sector remained the most
targeted industry in January.
- The virus rate for the
Chemical & Pharmaceutical sector reached one in 381.3 and one in
399.4 for the IT Services sector; one in 407.1 for Retail, one
in 138.3for Education and one in 236.7 for Finance.
Market Trends:
- The spam rate for small
to medium-sized businesses (1-250) was 68.9%, compared with
69.1% for large enterprises (2500+).
- Phishing attacks
targeting small to medium-sized businesses (1-250) accounted for
one in 225.2 emails, compared with one in 410.9 for large
enterprises (2500+).
- Malicious email-borne
attacks destined for small to medium-sized businesses (1-250)
accounted for one in 277.3 emails, compared with one in 281.5
for large enterprises (2500+).
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