Feeds

Hoax virus alert could cripple Windows Java

'jdbgmgr.exe' causing net confusion

  • alert
  • submit to reddit

Providing a secure and efficient Helpdesk

Antivirus experts are warning of a hoax virus alert which might trick users into deleting an important file on their Windows machines.

The fake warning tells users to search their hard drives and delete a file called jdbgmgr.exe, a filename used by Microsoft's Debugger Registrar for Java, which may be present quite legitimately on many computers.

But the Magistr-A virus is capable of sending infected copies of jdbgmgr.exe, and this seems to have spawned the misplaced warning, which is gaining ground.

Deleting Microsoft's Debugger Registrar for Java may result in Java programmes failing to run after the user has deleted legitimate copies of jdbgmgr.exe.

Rob Rosenberger’s Virus Myths first reported on the jdbgmgr.exe hoax alert (which he says should more properly be called an urban myth) last month. Anti-virus vendor Sophos backed up his analysis today, by warning that it has "received enquiries from thousands of concerned computer users about the subject".

The rule of thumb here is if you find a copy of jdbgmgr.exe on your computer, then it's probably not infected; but if you receive jdbgmgr.exe as an email attachment, then it probably is infected. If you receive an unsolicited executable file in your email, delete the email.

One other source of reassurance is that most AV packages have been able to detect Magistr-A for over a year, so if your anti-virus software is up to date, you will be protected from the Magistr virus anyway.

The panic caused by messages about jdbgmgr.exe is similar in many ways to the sulfnbk.exe hoax alert last year, which like the latest panic is believed to have been caused by a clueless - but well-meaning - user.

Users should avoid passing on virus warnings to friends, instead checking out the facts on an anti-virus Web site (or Vmyths.com). Alternatively they could forward the warning whoever in their company is responsible for virus protection, so that they can decide if it is valid. ®

External Links

Analysis of Magistr-A
Vmyths.com

Related Stories

Joker demands $1 million over hoax virus alert
Hoax virus alert targets MP3
Hoax alert mimics real virus threat
Jungle falls for obvious virus hoax
Budweiser Frogs eat HSBC

Choosing a cloud hosting partner with confidence

More from The Register

next story
SMASH the Bash bug! Apple and Red Hat scramble for patch batches
'Applying multiple security updates is extremely difficult'
Shellshock: 'Larger scale attack' on its way, warn securo-bods
Not just web servers under threat - though TENS of THOUSANDS have been hit
Apple's new iPhone 6 vulnerable to last year's TouchID fingerprint hack
But unsophisticated thieves need not attempt this trick
Oracle SHELLSHOCKER - data titan lists unpatchables
Database kingpin lists 32 products that can't be patched (yet) as GNU fixes second vuln
Who.is does the Harlem Shake
Blame it on LOLing XSS terroristas
Researchers tell black hats: 'YOU'RE SOOO PREDICTABLE'
Want to register that domain? We're way ahead of you.
Stunned by Shellshock Bash bug? Patch all you can – or be punished
UK data watchdog rolls up its sleeves, polishes truncheon
prev story

Whitepapers

A strategic approach to identity relationship management
ForgeRock commissioned Forrester to evaluate companies’ IAM practices and requirements when it comes to customer-facing scenarios versus employee-facing ones.
Storage capacity and performance optimization at Mizuno USA
Mizuno USA turn to Tegile storage technology to solve both their SAN and backup issues.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?
Beginner's guide to SSL certificates
De-mystify the technology involved and give you the information you need to make the best decision when considering your online security options.
Security for virtualized datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.