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Security Response

Showing posts tagged with Endpoint Protection (AntiVirus) remove filter
Showing posts by Dylan Morss remove filter
Dylan Morss | 13 Apr 2011 | 0 comments

米国では、連邦税の申告期日が今年は 4 月 18 日です。私が申告書類を送信した頃、興味をひくフィッシング詐欺がありました。この攻撃は、2011 年 4 月 6 日に始まる英国の新しい課税年度を利用しています。

問題のメッセージは HMRC(英国歳入関税庁)の名前で送信されており、所得税の過払い分について還付を受けられるというワナで、ユーザーから銀行口座情報を引き出そうとします。

メッセージの送信経路は全世界にわたっていました。米国にあるホテルのビジネスセンターと思わしき場所に始まり、ニュージーランドのサーバーを経由してから大手無料メールサービスのメールサーバーを介して米国内に戻り、英国のユーザーの受信ボックスに届いているようです。

メッセージに記載されている URL もこの国際的な詐欺に一役買っています。不用意に HMRC のリンクをクリックしたユーザーがリダイレクトされるドメインは、セルビア国内のものでした。

例: somehijackedwebsite.in.rs/admin/files/hmrc/hmrc/xxxx.htm

リンクをクリックすると新しいページが表示され、リストから銀行を選ぶように指示されます。HMRC が円滑に送金を処理できるように、利用者の口座が開設されている銀行を選択するということでしょう。

HMRC 利用者に送信された元の電子メールのサンプルを示します。ユーザーは、フィッシングが隠されているリンクをクリックして先に進み、情報を更新するよう促されています。詐欺師たちはこの情報を使って銀行口座から金銭を盗み出したり、なりすまし犯罪に悪用したりします。

HMRC の Web サイトにも書かれているように、還付金に関して利用者に電子メールが送信されることはありません。

「原則として、...

Dylan Morss | 12 Apr 2011 | 0 comments

As I recently have sent off my tax forms in preparation for the US Federal tax deadline on April 18 this year, a recent phishing scam piqued my interest. This attack is taking advantage of the new tax year beginning for folks in the UK on April 6, 2011.

The message in question was being sent in the name of the HMRC, Her Majesty’s Revenue and Customs, in an attempt to lure users into divulging bank account information with the lure of unclaimed tax overpayment money.

The path of the message had an international flavor, beginning at what looks like a computer at a hotel business center based in the US, then going through servers in New Zealand, then back to the US through the mail servers of a large free email service, and then presumably into the inbox of a user based in the UK.

The URLs in the message also contributed to this internationalized scam by utilizing a domain based in Serbia which would redirect users when they unsuspectingly clicked on the...

Dylan Morss | 18 Mar 2011 | 0 comments

過去数カ月の間にニュージーランドを襲った地震と余震をめぐって、インターネットユーザーの不安につけ込もうとするスパマーやフィッシング攻撃者による悪用が依然として続いています。シマンテックは最近、そのようなユーザーに対して続いているフィッシング攻撃を確認しました。

この例では、銀行のサイトにアクセスし、追加の情報を入力するように要求されます。ほとんどの場合、このような情報は、金銭や ID 情報を詐取するために要求されており、ユーザーの銀行口座情報や個人情報へのアクセスに利用されてしまいます。

シマンテックがデータの分析に着手した時点で、このサイトはすでに活動を停止していました。日本での惨事に注目が集まるとともに、ニュージーランドを狙った攻撃の量は減り続けていますが、このような詐欺はまだ続く見込みです。

インターネットを利用する場合は、フィッシング攻撃を防ぐためにできる限りの対策を講じることを推奨します。

•    電子メールメッセージの中の疑わしいリンクはクリックしない。
•    電子メールに返信するときに個人情報を記述しない。
•    ポップアップ画面に個人情報を入力しない。
•    Norton Internet Security 2011 など、オンラインフィッシングを防止するセキュリティソフトウェアを頻繁に更新する。

 

* 日本語版セキュリティレスポンスブログの RSS フィードを購読するには、http://www.symantec.com/connect/ja/item-feeds/blog/2261/feed/all/ja...

Dylan Morss | 18 Mar 2011 | 0 comments

The earthquake and aftershocks which have struck New Zealand in the last few months are still being exploited by spammers and phishers in an attempt to feed upon the fears of Internet users. Symantec has recently observed continued phishing attacks against these users.

In this case, the phishers are asking users to check in with the bank and provide some additional information. The information will then most likely be used to access users’ banking accounts and personal information with the intent of stealing money and probably identities as well.

By the time Symantec went to analyze the data, this site had already been taken down. Although the volume of New Zealand specific attacks continues to dwindle as the events in Japan take center stage, we will continue to see such scams.

Internet users are advised to follow best practices to avoid phishing attacks:

•...

Dylan Morss | 23 Mar 2010 | 0 comments

One can be both impressed and amused at how far image spammers will go in distorting their image payloads in an attempt to slip through spam filtering technologies. If the spammer somehow manages to slip spam through spam filters from time to time, it allows email users to see how badly mangled the images must become. The images are, for all practical purposes, illegible. Take, for instance, this example below:

Seriously, Mr. Spammer, thank you for trying so hard! Perhaps this piece of Internet debris finally arrived in your potential customer’s inbox; too bad it’s more noise than message. In fact, it’s completely useless.

What is that?
Pills what?
A URL, is it?

You really expect anyone to follow through with such bad presentation?

Take a look at the ironic subject line in this particular message:

From:  "NNNN...

Dylan Morss | 02 Mar 2009 | 0 comments

Over the month of February I decided to keep an eye on spam messages that were using the cult of the Academy Awards celebrity to peddle products. I tracked spam using the names of the actors nominated for best actor and actress in a leading role in the subject line.
 
The results were overwhelming! It seems that although an Oscar nomination can mean big bucks and recognition in the world of big budget films, studios, and pop culture, it doesn't carry so much weight in the world of spam finance.
 
Of the ten actors nominated, only three appeared in spam subject lines in February. Anne Hathaway received an honorable mention with one spam message. The rest of the spam went to Brad Pitt and Angelina Jolie. The other seven actors received no spam counts and will have to be satisfied with not being chosen to help fatten the pockets of spammers. If the spammers could vote for the awards, it’s obvious that things would have turned out a whole lot...

Dylan Morss | 12 Feb 2009 | 0 comments

This is the third and probably final blog entry for me on Valentine’s Day spam as the minutes tick off before the holiday. Since my last post on February 3, we have continued to observe an increase in spam messages associated with this lovers’ holiday.

I narrowed my search to the month of February, so the data in this blog article only covers spam from February 1 until today. As a throwback to my first Valentine’s Day blog post, I thought I would pull up a recent list of Valentine’s Day spam subject lines.

The top 20 Valentine’s Day-related subject lines for February:

St. Valentine's bomus
Casino St. Valentine's Day
St. Valentine's Casino
Casino - St. Valentine's day
St. Valentine's casino
St. Valentine's games in Casino
St. Valentine's Bonus
Send Valentines Day...

Dylan Morss | 03 Feb 2009 | 0 comments

After I posted a blog entry last week (1/28/2009) on Valentine’s Day spam subject lines, I thought it would be interesting to take a closer look at specific words related to Valentine’s Day that have been appearing in spam subject lines recently to see if there were any trends. I had previously noted an increase in the appearance of a few Valentine’s Day related words; “cupid,” “Feb 14,” and “February 14,” and I wanted to expand the search a bit. I was hoping to try and redeem the reputation of Valentine’s Day spam since my previous post put the spammer’s intentions in a less romantic light than the holiday warrants. I decided to search for traditional Valentine phrases such as the following: chocolate, cupid, Feb 14, February 14, flowers, heart, jewelry, Valentine, and Valentine...

Dylan Morss | 28 Jan 2009 | 0 comments

What would your Valentine like this year? Perhaps a shopping spree, a watch, cash, or an assortment of E.D. or weight loss pills?
 
We are nearing the end of January and Valentine’s Day spam is in full swing. Spammers have been busy making sure they have the perfect gift for your loved ones this year.
 
The top 20 Valentine’s Day spam subject lines seem more like a laundry list of solutions for a cast of depressed porn stars than an array of truly romantic gifts. What says "Happy Valentine’s Day" quite as well as "Hi Sweetie, here are some weight loss pills for you this year, maybe you can drop a few pounds!"?
 

The top 20 Valentine’s Day-related subject lines for January

 

Increase your length, the best valentine's gift
Show off your length for valentine's
Get it before Valentine's day and watch her smile
You have been...

Dylan Morss | 19 Dec 2008 | 0 comments

After the shutdown of McColo, which was aiding the distribution of about half of all spam on the internet globally, spam volumes dropped. However, since mid-November, spam volumes have been slowly inching their way back up as old botnets are being brought back online and potential new botnets are being created.

At this point, spam volumes have slowly crept back up to 80 percent of their pre-McColo shutdown levels (when reviewing daily averages):

 

 

The types of spam being seen in new attacks are similar to what was being sent around the Internet prior to the shutdown. The spam messages can be categorized into the following groups:

  • Replica watches
  • Generic pharmacy
  • Erectile dysfunction drugs
  • Weight loss
  • Software

The spam is...