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Tópico: Botnets

  1. #1
    2n-1 Avatar de ímpar
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    ***- According to Sergeant, there are about two million computers in the botnet sending spam e-mail "on any given day." Worse yet, he estimates that the botnet is only operating at 10% of its capacity, and he suspects it could count as many as 50 million compromised PCs. He adds, "If you calculate pure theoretical throughput, then I'm sure the botnet has more capacity than IBM's BlueGene."


    ***- Botnet attack targeting eBay and its users, compromising accounts
    ...
    The latest attack is targeting eBay members and stealing their online identities using multi-stage attacks in order to perpetuate fraud. It was first identified by researcher Ofer Elzam, who works for the firm Aladdin Knowledge Systems, Ltd. Ars had a chance to talk to Mr. Elzam recently, and he explained how the fraudsters, which he believes may have started as early as mid-August, did their dastardly work.




    Spammers launch denial of service attacks against antispam sites

    Antispam community sites that help combat phishing scams and spam are being targeted with denial of service attacks by malware botnets presumably operated by spammers. The trend was reported last week by antispam site SpamNation.




    Storm worm going out with a bang, mounts DDoS attacks against researchers

    When we last wrote about the Storm Worm in September, Heise Security had noted that the growing botnet had not yet been used for much, but could be a threat in the future. "[A]lthough the network has so far been primarily used to send spam, it could also be used for DDoS attacks on businesses or even countries," said Heise. Since then, Heise's prediction has come true; the worm now attacks those who publish new information on the inner workings of the worm. Researchers are allegedly "running scared" from the worm, which seemingly has a sentient ability to detect and attack whoever threatens it.


    Já dava um filme...



    Storm Worm delivering coal this Christmas

    The Storm Worm debuted early in 2007, and has been causing headaches for consumers, IT managers, and ISPs ever since. More recently, the total number of infected systems has been waning, partly thanks to an updated version of Microsoft's Malicious Software Removal Tool. Other antivirus updates and general consumer awareness have cut Storm's total botnet to a fraction of what it was. Someone—presumably the worm's authors—has taken exception to that fact, and unleashed a fresh wave of Storm attacks aimed at capitalizing on the Christmas season.
    Lá em cima há planícies sem fim; Há estrelas que parecem correr; Há o Sol e há dia a nascer;
    E nós aqui sem parar numa Terra a girar…


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  2. #2
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    Six botnets churning out 85 percent of all spam



    Florida botnet herder sheared by cops, faces 10 years in pen

    Most 21-year-olds in the US are either off at college enjoying their newfound freedom to drink themselves into a stupor, or already throwing themselves into the workforce (possibly also drinking themselves into a stupor). But 21-year-old Robert Matthew Bentley instead faces jail time and up to $250,000 in fines after pleading guilty for installing adware on "hundreds of computers" across Europe.




    There's a new botnet worm on the loose
    ...
    Kraken hides by using a combination of ploys, including changing its binary code regularly and morphing itself so that it evades static pattern matching.

    Paul Royal, principal researcher at Dambala said, "It's easy to trace but slow to get antivirus coverage. [That] seems to imply [the authors] have a good understanding of how AV tools operate and how to evade them."

    The Kraken vector is encrypted and appears to the user as an image file. When the user attempts to view the image, the malware decrypts itself and infects the machine. Like Storm, the Kraken botnet is redundant, adaptive and resiliant.

    So far Kraken is mostly being employed for the usual spamming schemes. Its bots are busy demons, each spewing out up to 500,000 spam emails per day.




    New Kraken worm evading harpoons of antivirus programs

    Researchers at Damballa Solutions have uncovered evidence of a powerful new botnet they've nicknamed Kracken. The company estimates that Kraken has infected 400,000 systems, which would make it twice the size of Storm during that botnet's hayday. (The final size of Storm's botnet is disputed; Damballa estimates Storm infected up to 200,000 machines).




    Fighting Storm with smog: researchers pollute botnet
    ...
    The research team reverse-infiltrated Storm by deliberately allowing the botnet to infect a series of honeypots. Once infected, the honeypots become launch points for the researcher's own payload. Along the way, the team was able to estimate the number of infected systems by actively tracking P2P activity rather than passively observing the total amount of spam flowing out of a single botnet.




    Preparing for cyber warfare: US Air Force floats botnet plan
    ...
    But in the Internet era, the technical realities associated with carrying out cyber warfare on a largely civilian network infrastructure dictate that if you build a massive military botnet aimed at shutting down enemy networks with distributed denial-of-service (DDoS) attacks, then you can expect that the public will find out what you're up to sooner or later. And they may not be all that happy about it.

    Hence articles like the one that Col. Charles W. Williamson III recently published in the Armed Services Journal (via Slashdot), wherein he tries to make the public case for a military botnet as a prelude to actually building such a beast and placing it under the Air Force's control. Williamson's article fleshes out a number of things that have been hinted at so far in the ongoing public relations offensive that has followed the official unveiling of the new Air Force Cyber Command (AFCYBER).
    Lá em cima há planícies sem fim; Há estrelas que parecem correr; Há o Sol e há dia a nascer;
    E nós aqui sem parar numa Terra a girar…


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  4. #4
    Old School Member Avatar de destr0yer
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    enfim, bots...

    ps: só vejo posts teus aqui, pah, já tens poderes para merge posts

    "I'll see you in another life, brother." 24-05-2010, Day 1 After Lost, world shall not be the same again.
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  10. #10
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    Massive botnet returns from the dead, starts spamming
    Criminals regain control after security firm stops preemptively registering routing domains

    A big spam-spewing botnet shut down two weeks ago has been resurrected, security researchers said today, and is again under the control of criminals.

    The "Srizbi" botnet returned from the dead late Tuesday, said Fengmin Gong, chief security content officer at FireEye Inc., when the infected PCs were able to successfully reconnect with new command-and-control servers, which are now based in Estonia.
    Lá em cima há planícies sem fim; Há estrelas que parecem correr; Há o Sol e há dia a nascer;
    E nós aqui sem parar numa Terra a girar…


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  11. #11
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    Time for forced updates? Conficker botnet makes us wonder

    The security industry is currently riding high on a string of successful malware-friendly ISP takedowns, but the rising specter of a new major botnet has driven spam levels back to previous levels before McColo was kicked offline. The new botnet is currently known by several names: Trend Micro calls it Downad.a, Microsoft uses Conficker.a, and Symantec labeled it Downadup. No matter what you call it, it's causing some problems, though various antimalware companies have held out hope that it can be contained before it grows to the size of Storm or Srizbi.
    Às vezes não percebo como é que há gente que não tem o SO com os últimos patches.
    Estupidez ou ignorância?
    Lá em cima há planícies sem fim; Há estrelas que parecem correr; Há o Sol e há dia a nascer;
    E nós aqui sem parar numa Terra a girar…


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  12. #12
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    Mega-D botnet flexes muscle after ISP takedowns

    We've followed the Mega-D botnet throughout 2008, from its amazing growth early in the year to its sudden deflation once its control servers were taken offline. Mega-D never completely lost its potency, however, and has continued to eject spam into the Internet's tubes for the past year.

    Mega-D should've been spent by now, but the recent disruptions to McColo and Atrivo earlier in the fall may have led spammers to revive other, secondary botnets and possibly to combine forces.
    Lá em cima há planícies sem fim; Há estrelas que parecem correr; Há o Sol e há dia a nascer;
    E nós aqui sem parar numa Terra a girar…


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  13. #13
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    Storm Worm botnet meets its match

    THE INFAMOUS and rather destructive Storm Worm botnet has been blown open. A team of researchers from Bonn and RWTH Aachen Universities has proven that it is not as invincible as once thought.

    Georg Wicherski, Tillmann Werner, Felix Leder and Mark Schlösser have developed software which they have partially disclosed claiming that they can rapidly eliminate the Storm Worm botnet.

    The Storm Worm has been causing havoc for over two years now, transforming more than a billion computers into drones. Following a surprisingly unsuccessful mission by Microsoft’s Malicious Software Removal Tool around 100,000 drones still remain.

    So how did these researchers do it?
    Lá em cima há planícies sem fim; Há estrelas que parecem correr; Há o Sol e há dia a nascer;
    E nós aqui sem parar numa Terra a girar…


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    Meet Son of Storm, Srizbi 2.0: next-gen botnets come online

    As notable as the sustained fall-off in spam levels has been, we've all known it's only a matter of time before botnets began to worm their way back into the the Internet. It turns out that part of the reason spam levels may have stayed lower these past months is that the same authors who might have normally spent time resurrecting their dead botnets on new servers were instead writing new botnets altogether. The new malware networks aren't just rehashes of what's come before; many of them incorporate advanced techniques to render themselves harder to detect/remove.
    Lá em cima há planícies sem fim; Há estrelas que parecem correr; Há o Sol e há dia a nascer;
    E nós aqui sem parar numa Terra a girar…


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    iBotnet: Researchers find signs of zombie Macs

    Malware hunters at Symantec have discovered a direct link between a malicious file embedded in pirated copies of Apple’s iWork 09 software and what appears to be the first Mac OS X botnet launching denial-of-service attacks.
    Lá em cima há planícies sem fim; Há estrelas que parecem correr; Há o Sol e há dia a nascer;
    E nós aqui sem parar numa Terra a girar…


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  16. #16
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    Finjan Finds Botnet of 1.9M Infected Computers

    A prominent security firm has discovered a botnet of almost 2 million computers controlled by a single cybergang.
    Lá em cima há planícies sem fim; Há estrelas que parecem correr; Há o Sol e há dia a nascer;
    E nós aqui sem parar numa Terra a girar…


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  17. #17
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    Microsoft Granted Permanent Ownership of 276 Botnet Domains

    The domains now owned by Microsoft were part of the Waledac botnet

    Much of the spam and malicious internet attacks that web surfers and email users have to deal with on a daily basis come from compromised computers of individuals who have no idea that their machines are infected. These botnets are a major security issue for all web users and shutting them down is a huge goal for security firms and the U.S. government.

    One of the largest software companies on the planet is working hard to combat these botnets. Microsoft has sought legal approval to attack botnets and destroy them to limit the amount of spam and the number of attacks that are perpetrated against computer users.
    Lá em cima há planícies sem fim; Há estrelas que parecem correr; Há o Sol e há dia a nascer;
    E nós aqui sem parar numa Terra a girar…


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  18. #18
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    23-Year-Old Russian Hacker Responsible Was for One-Third of Global Spam
    ...
    Using a network of over 500,000 zombie computers known as the Mega-D botnet, Nikolaenko churned out 10 billion spam emails a day at the height of his operation. These advertised mostly counterfeit goods and herbal remedies—one Rolodex counterfeiter who was his client said he spent $2 million on spam advertising.
    Lá em cima há planícies sem fim; Há estrelas que parecem correr; Há o Sol e há dia a nascer;
    E nós aqui sem parar numa Terra a girar…


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  19. #19

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    Oh ímpar tu sozinho fazes a festa, lanças os foguetes e apanhas as canas! Podes usar o forum no modo offline!

  20. #20

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