Joe job

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A joe job is a spamming technique that sends out unsolicited e-mails using spoofed sender data. Early joe jobs aimed at tarnishing the reputation of the apparent sender or inducing the recipients to take action against him (see also e-mail spoofing), but they are now typically used by commercial spammers to conceal the true origin of their messages.

Origin and motivation

The name "joe job" originated from such a spam attack on Joe Doll, webmaster of Joe's Cyberpost. One user's joes.com account was removed due to advertising through spam. In retaliation, the user sent another spam with the "reply-to" headers forged to make it appear to be from Joe Doll. ^[1] Besides prompting angry replies, it also caused joes.com to fall prey to denial-of-service attacks that took the web site down temporarily.

Most e-mail joe jobs are acts of revenge like the original, whether by individuals or by organizations that also use spam for other purposes. Unless the joe-jobber is a business trying to defame a competitor or a spammer trying to harm the reputation of an anti-spam group or filtering service, there is no commercial use for joe jobbing. Therefore, it is a comparatively uneconomical form of spam, unless an additional aim is to advertise within the email body, and mail replies are not what the spammer is after. Joe job attacks in other media are often motivated politically or through personal enmity.

Form

Joe jobs usually look like normal spam, although they might also disguise themselves as other types of scams or even as legitimate (but misdirected) messages.

Joe jobbing (or "joeing") can take different forms, but most incidents involve either e-mail or Usenet. They are sometimes seen on instant messaging systems as well. In general, joe jobbing is seen only on messaging systems with weak or no sender authentication, or where most users will assume the purported sender to be the actual one.

If the joe-jobber is imitating a normal spam, it will simply advertise the victim's product, business or website. It may also claim that the victim is selling illegal or offensive items such as illegal drugs, automatic weapons or child pornography to increase the likelihood that the recipient will take action against the victim.

Some joe jobs are politically motivated, where the intended victim is usually a political candidate, party or organization. Such joe jobs generally espouse an inflammatory viewpoint not actually held by the victim, or present a deliberately distorted variation of an actual viewpoint. Large-scale joe jobs were staged on Usenet against the Ralph Nader campaign in 2000 and 2004. The second of these was unusual in employing multiple phases —the first a conventional political joe job, the second claiming to be a widely spammed and similarly inflammatory statement by the Nader campaign about the first.^{[citation needed]}

When imitating a scam, such as a Nigerian scam, or phishing scheme, the e-mail will still feature links to the victim's website or include contact information. In these instances, the joe-jobber is hoping that the recipient will notice the e-mail is fake, but mistakenly think the victim is behind the "scam".

When imitating a legitimate e-mail, the joe job will usually pose as an order confirmation. These "confirmations" may ask for credit card information, in which event the attack differs from phishing only in intent, not methodology, or simply imply that the recipient has already bought something from the store (leading the recipient to fear his credit card has already been charged). Like the "normal spam" jobs, these e-mails will often mention illegal activities to incite the recipient to angry e-mails and legal threats.

Another joe-job variation is an e-mail claiming that the victim offers a "spam friendly" web host or e-mail server in the hope of further inciting action against the victim by anti-spam activists.

How it works

Joe jobs often intend to capitalize on general hatred for spam. They usually forge "from" addresses and email headers so that angry replies are directed to the victim. Some joe job attacks adopt deliberately inflammatory viewpoints, intending to deceive the recipient into believing they were sent by the victim. Joe job victims may lose website hosting or network connectivity due to complaints to their Internet service providers, and even face increased bandwidth costs (or server overload) due to increased website traffic. The victim may also find his or her email blacklisted by spam filters.

Unlike most email spam, the victim does not have to "fall for" or even receive the email in question; the perpetrator is using innocent third parties to fuel what essentially amounts to slander combined with a denial of service attack.

Joe-job-like automated spam

False headers are used by many viruses or spambots today, and are selected in a random or automated way, so it is possible for someone to be Joe Jobbed without any human intent or intervention.^[2]

See also

• Backscatter (e-mail), a related phenomenon that is not targeted directly at a particular victim
• False flag, a similar military concept
• Sporgery

References

External links

• Joe Doll's account of the original joe job
• Steve's Joe Job Page
• Some examples of recent joe jobs
• Joejobs: The Simple Explanation
• Sabotage! Coping With The Joe Job by Dillian Thomas
• The Weekend IBM.NET Almost Died - Another article about Joe Jobs that covered IBM's refusal to terminate the account