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05/02/05
- Publicité -
Google Adwords : Des campagnes de publicité manipulées ?
- Manipulated Google Adwords advertising campaigns ?...
Google
Adwords Hijacked - Keywords Web Hosting 5 cents - HostingNews
"Google's
premiere advertising unit, AdWords, appears to have been attacked over the
last two days across several highly targeted keywords and strings through
an approach termed keyword hijacking.
AdWords is the contextual advertising division of Google that allows an
advertiser to create ads, choose keywords and pay only when someone clicks
on them. The program was developed in 2000 with the official launch of
AdWords Select™ taking place in January 2002. The advertising system is
widely thought to be the cornerstone of Google’s revenue.
Beginning Thursday, February 3, 2005, apparently several keywords across
multiple search topics have been attacked. Such search terms as “web
hosting,” “irs,” “mortgage” and even “ebay” have resulted in
significantly fewer AdWords contextual placements appearing in search
results.
ClickRisk,
a click fraud consulting service, issued a Google AdWords advisory on
February 2nd that botnets are able to “shut down or seriously impair a
Google Adwords advertising campaign by artificially inflating the number
of times an ad is displayed.” This in turn would cause AdWords to
automatically disable the targeted keywords essentially shutting down the
campaign for those words.
Adam Sculthorpe, security specialist and CEO of Clickrisk.com, and his
team of 19 researchers have discovered through extensive forensic testing
and analysis of Google Adwords, a new type of click fraud—Keyword
Hijacking. Keyword Hijacking is where an attacker disables campaign
keywords to secure a higher ad position. Sculthorpe explains, “this is
achieved by disabling targeted keywords across many advertisers’
campaigns simultaneously by artificially inflating the number of times an
ad is displayed.”
Speculation as to the cause throughout many blogs and forums has been wide
and far. One such example has regarded botnets using Google’s AdWords
API beta (a service that lets applications created by developers,
advertisers and third parties to more efficiently - and creatively -
manage their large AdWords accounts and campaigns directly with the
AdWords server) to disrupt the system. Another speculation has connected
Google's recent ICANN accreditation to the AdWords attack.
The AdWords attack has potential far reaching affects. From Google
investors losing ad revenue across multiple industries to the industries
themselves, the dollar figure could be astronomical. Trey Gardner, Online
Marketing Manager at Globat.com said “Overall hundreds of hosting
providers and web hosting directories spend tens of thousands of dollars
every day to attract the thousands of potential customers searching the
“web hosting” key term in Google…the percentage loss of new
customers today may have been greater than 15%.”..."
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Botnets
strangle Google Adwords campaigns - The Register
03/02/05
"Security researchers have discovered a way to shut down
or seriously impair a Google Adwords advertising campaign by
artificially inflating the number of times an ad is displayed.
By running searches against particular keywords from
compromised hosts, attackers can cause click-through
percentage rates to fall through the floor.
This, in turn, causes Google Adwords to automatically disable
the affected campaign keywords and prevent ads from being
displayed. By disabling campaign keywords using the technique,
cybercrimals could give their preferred parties higher ad
positions at reduced costs, according to click fraud
prevention specialists Clickrisk.
"By disabling targeted keywords across many advertisers'
campaigns simultaneously by artificially inflating the number
of times an ad is displayed an attacker can secure a higher ad
position," explains Clickrisk.com chief exec Adam
Sculthorpe. The attack - dubbed keyword hijacking - is
difficult to prevent because it takes advantage of a design
feature of Google Adwords rather than a flaw, he added.
Clickrisk came across the attack in investigating why the
click through rates of one of its clients - which had been
running at a steady rate - dropped to zero for no apparent
reason. Subsequent monitoring and forensic testing revealed
that a botnet made up of open proxies in China was responsible
for the attack.
High—cost-per-click (CPC) advertisers in niche markets are
particular vulnerable to the keyword hijacking attack..."
Clickrisk
Identifies Critical Flaw in Google Adwords - PRWEB
03/02/05
"Clickrisk has identified a critical flaw in Google
Adwords that allows an attacker to disable campaign keywords
and adopt higher ad positions at reduced costs.
Adam Sculthorpe, security specialist and CEO of Clickrisk.com,
and his team of 19 researchers have discovered through
extensive forensic testing and analysis of Google Adwords, a
new type of click fraud—Keyword Hijacking. Keyword Hijacking
is where an attacker disables campaign keywords to secure a
higher ad position. Sculthorpe explains, “this is achieved
by disabling targeted keywords across many advertisers’
campaigns simultaneously by artificially inflating the number
of times an ad is displayed.”
Sculthorpe is concerned that “the business impact of keyword
hijacking can be very high—cost-per-click (CPC) advertisers
may suffer disabled keywords for extended periods of time”.
This compromises return-on-investment (ROI) for online ad
campaigns, where symptoms of an attack include a sudden drop
in click-through rates and disabled keywords..."
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