Articles about false positive

Engineer aboard Das Boot U-96 responds to telegraphs

Microsoft Friday false positive: Bluber-A ballsup makes sysadmins blub

Enterprises were faced with all sorts of inconvenience on Friday after a Microsoft security tool incorrectly flagged up benign files as infected with a worm. Microsoft Defender's false positive resulted in false alarms that files were infected by Bluber-A, a previously obscure cyber-pathogen. Redmond's security gnomes reacted …
John Leyden, 3 Apr 2017
Engineer aboard Das Boot U-96 responds to telegraphs

'Webroot made my PCs s*** the bed' – AV update borks biz machines hard

Updated Anti-malware firm Webroot has apologized after an update pushed out this week borked computers at unlucky companies, leaving the PCs unbootable. El Reg learned of the issue through reader Andrew, who reported that the Webroot 9.0.15.43 update for enterprises has "shit the bed," creating all sorts of problems on corporate …
John Leyden, 2 Feb 2017

Trend Micro AV nukes innocent Sharepoint code, admins despair

Trend Micro's antivirus software has flagged benign Sharepoint code as potentially malign and nuked the files, causing the Microsoft package to fall over. After installing a dodgy update, Trend's OfficeScan tool removes a harmless JavaScript file from Sharepoint, leaving crashing servers in its wake. Aggrieved admins have …
John Leyden, 8 Dec 2016

Borked ESET antivirus update says entire web is too risky to browse

Surfers who rely on ESET anti-virus are having a hard time surfing the web following a misfiring anti-virus update, pushed out on Monday morning. The update is stopping people who apply it from browsing most of the internet, including ESET’s own site. Sites such as Amazon, MSN and more are falsely being labelled as …
John Leyden, 29 Feb 2016

Kaspersky Lab denies tricking AV rivals into nuking harmless files

Kaspersky Lab deliberately fed bogus malware to its rivals to sabotage their antivirus products, two anonymous former employees allege. Kaspersky says the accusations are false. Reuters reported today that two ex-Kaspersky engineers claim they were tasked with tricking competing antivirus into classifying benign executables …
John Leyden, 14 Aug 2015

F*cking DLL! Avast false positive trashes Windows code libraries

A misfiring signature update from anti-virus developer Avast triggered all sorts of problems on Wednesday. Avast acted promptly by withdrawing the definition update but not before numerous users had fallen foul of the problem. The withdrawn update incorrectly labelled various libraries (dlls) on Windows PCs as potentially …
John Leyden, 7 May 2015

UK smut filter may have sent game patch to sin-bin

UK gamers believer they're bumping into that country's mandatory ISP-level smut filters, courtesy of a filename that accidentally red-flags the purience-punting grumble-blockers. Courtesy of this Reddit thread, it seems that users trying to download upgrades to the game League of Legends are stalling when they reach files …

Dodgy Kaspersky update borks THOUSANDS of NHS computers

A misfiring antivirus update from Kaspersky Lab "effectively levelled several networks" last months including systems at Britain's NHS, The Register has learned. A Kaspersky update released on 25 October falsely classified a Windows system file, specifically tcpip.sys, as malign and quarantined it. The procedure left Windows …
John Leyden, 7 Nov 2013
The Register breaking news

Malwarebytes declares Windows 'malicious', nukes 1,000s of PCs

A dodgy software update for virus-killer Malwarebytes disabled thousands of PCs before a fix was issued this week. Malwarebytes' database version v2013.04.15.12 erroneously flagged core Windows system files as malicious, resulting in unstable - and in some cases unbootable - machines. Windows system files were wrongly …
John Leyden, 19 Apr 2013
The Register breaking news

Sophos antivirus classifies its own update kit as malware

Sophos users woke up to mayhem on Thursday after the business-focussed antivirus firm released an update that classified itself and any other update utility as a virus. As a result enterprise PCs running the application went haywire, generating false positives reporting SSH/Updater-B malware. Sysadmins were bombarded with …
John Leyden, 20 Sep 2012
The Register breaking news

'Catastrophic' Avira antivirus update bricks Windows PCs

Security software biz Avira has apologised after its antivirus suites went haywire and disabled customers' Windows machines. A service pack issued in Monday caused its ProActiv monitoring software to think vital operating system processes were riddled with malware and blocked them from running. Users of the affected products …
John Leyden, 16 May 2012
The Register breaking news

Bonkers MS security update flags Google.com as malign

A dodgy update to Microsoft's anti-virus software on Tuesday meant users of the software were wrongly warned that Google's homepage was infected with the infamous Blackhole Exploit Kit. Users of Microsoft's Forefront corporate security products (here) and freebie Security Essentials scanner software (here) were both affected …
John Leyden, 15 Feb 2012
The Register breaking news

Avast false alarm hits Steam's weekend gamers

Freebie anti-virus scanner Avast falsely identified an executable associated with the popular Steam gaming platform as a Trojan on Sunday. The snafu, which persisted for around 90 minutes, meant that SteamService.exe was wrongly identified as a Trojan (specifically Trojan-gen) and sent to quarantine. Judging by posts on Steam …
John Leyden, 6 Feb 2012
The Register breaking news

Avira anti-virus labels itself as spyware

Avira anti-virus detected components of its own application as potentially malign on Wednesday following a dodgy signature update. Avira detected its own AESCRIPT.DLL library file as the previously obscure "TR/Spy.463227" strain of malware. The dodgy AntiVir virus definition file was quickly pulled and replaced with a new …
John Leyden, 26 Oct 2011
The Register breaking news

Avast alert finds WHOLE WEB malign

Major freebie anti-virus scanner Avast has apologised for a cock-up defining the vast majority of the web as malign. Rather than a Howard Beale-style insight into the state of the modern interwebs, the finding of any sites with scripts or frames - including Avast's own support forums - as malign was the result of a rogue virus …
John Leyden, 12 Apr 2011
The Register breaking news

McAfee recovers from Sesame Street email filter mix-up

McAfee has apologised for a Sesame Street-style mix-up over the weekend that temporarily prevented any customers with addresses that start with the letter A from receiving email. The glitch – which involved the managed email filtering service from MX Logic, acquired by McAfee back in 2009 – bounced emails sent to supported …
John Leyden, 6 Apr 2011
The Register breaking news

WinPatrol blames McAfee for lost business

Security software firm WinPatrol has criticised McAfee for a tardy response to a false positive problem that it claims might have lost it business. McAfee wrongly identified the set-up program of a new version of WinPatrol's system monitoring software as malign from around 2 October. WinPatrol complained but McAfee said its …
John Leyden, 11 Oct 2010
The Register breaking news

Kaspersky blocks BBC News over false phishing fears

Updated Kaspersky's security software created confusion on Wednesday after it blocked the redesigned BBC News site and other web properties. The Russian security firm's widely used Internet Security 2011 package labelled the revamped news site as a phishing risk, warning users against visiting it. The Auntie-blocking behaviour …
John Leyden, 15 Jul 2010

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