Attacks/Breaches
3/14/2014
11:58 AM
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Target Ignored Data Breach Alarms

Target's security team reviewed -- and ignored -- urgent warnings from threat-detection tool about unknown malware spotted on the network.

Image credit: Jay Reed on Flickr.
Image credit: Jay Reed on Flickr.

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rradina
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rradina,
User Rank: Apprentice
3/24/2014 | 3:19:56 PM
Re: Deactivation of FireEye's Automatic Response
It certainly does.  My last employer has been using it since ~2004/5 -- before McAfee bought Solidcore.  Back then the employer was flagged for not having virus protection on their POS systems.  We had to constantly ask for a compensating control.  That left me with a poor impression of the PCI rules and those who conducted the audits.  It's similar when calling a support line that isn't staffed by trained and experienced resources.  They cannot truly understand problems.  They can only read a script and follow a yes/no logic tree.
Duke_Bauer
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Duke_Bauer,
User Rank: Apprentice
3/24/2014 | 12:03:15 PM
Re: Deactivation of FireEye's Automatic Response
I believe this solution exists (McAfee Solidcore)
pfretty
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pfretty,
User Rank: Apprentice
3/19/2014 | 4:04:28 PM
Happens far too often
Unfortunate, but the fact that they ignored the warning signs isn't a surprise. There is a dramatic need for a shift in culture. One would think the cost alone would be enough. On average attacks cost companies $11.6 million according to the 2013 HP Ponemon Cost of Cyber Crime report (http://www.hpenterprisesecurity.com/ponemon-study-2013).

Peter Fretty (j.mp/pfrettyhp)
rradina
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rradina,
User Rank: Apprentice
3/18/2014 | 11:54:26 AM
Re: Deactivation of FireEye's Automatic Response
Locking them down assumes an OS security exploit was not used to install the malware.  I think it's been established Target's POS uses Windows.  I'll even go further and make an assumption that it's probably XP.

I'm not aware of any XP built-in solution to prevent a security hole being exploited to install malware.  If it's a remote attack vector, it'll typically involve a network service of some kind.  Most services generally have escalated privileges and if compromised, the hacker can almost always use them to gain root access.  

What Windows needs is a helper that monitors via read/write hooks and compares all file-system changes on system/software components with a dictionary made on the original system's image.  If anything is found out of spec, an alert is issued and the processes that use the corrupt image are terminated.  Further, such a helper also needs to scan DLLs and applications IN MEMORY to make sure they too are appropriate.  If not, the processes are terminated.  If an new process begins that's tied to an executable that's not part of the original image, it's terminated before it even finishes loading into memory.

Such products exist for XP and had they been using them, it would have been really tough to infect their POS systems even if a USB thumb drive was inserted.  Hackers would first have to figure out how to disable that software before exploiting the system.  Unfortunately this would require hacking the system so the protection mechanism can be hacked.  It's a chicken and egg scenario.  Certainly not foolproof but arguably difficult enough to perhaps convince them a company using such protection is not low hanging fruit.
SaneIT
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SaneIT,
User Rank: Apprentice
3/18/2014 | 8:43:30 AM
Re: Deactivation of FireEye's Automatic Response
You would think that the POS terminals would be locked down as tightly as possible.  It's not like your cashiers should be installing anything on them but not knowing all the details it is possible that the application used the name of a Windows service or application.  
PaulS681
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PaulS681,
User Rank: Apprentice
3/17/2014 | 7:16:26 PM
unacceptable
It just keeps getting worse for Target. To now know they had the systems in place that could have stopped this breach if they just used the system correctly is unacceptable. This just goes to show you that the best systems are rendered useless id people don't use them correctly.
rradina
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rradina,
User Rank: Apprentice
3/17/2014 | 5:33:00 PM
Re: Deactivation of FireEye's Automatic Response
They should respond manually.  If the product constantly cries wolf, either the alert config needs review or the product needs to be replaced.  If that's not an option then they should push the alerts to Splunk and mine the noise for credible events that correlate with other intrusion events (assumes firewalls and other stuff are pushed to Splunk).  My point was automated responses might be tolerated for devices that aren't customer facing but you do not want call center devices, bank ATMs or POS systems downed by a false alarm that automatically removes a vital component.

As a side note, I still don't understand why a POS system could have ANYTHING new installed on it outside of planned events.  They shoud use white list protection or an OS that won't run unsigned apps (like IOS, Android or Windows RT).
hho927
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hho927,
User Rank: Apprentice
3/17/2014 | 2:25:10 PM
Block botnets
Target IT dept fail many ways. 1) If Target blocked all connections to botnet centers, the malware could not send data out. 2) The HVAC vendor said they didn't monitor Target remotely, why did Target give them a corp/network account? 3) Target should not give that account full access to the POS. 4) Security,access auditing was ignored. 5) Ignored alarms. 6) POS should have a seperate network. Target tried to save money here.
SaneIT
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50%
SaneIT,
User Rank: Apprentice
3/17/2014 | 9:02:21 AM
Re: Deactivation of FireEye's Automatic Response
Do you know what Target's procedure is when they see an alarm in the software, false or otherwise?  I would think that they have a policy in place to investigate the alarm to determine its validity. I know that things can move very slowly in the corporate world but this is the type of issue that most companies prepare for.
rradina
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50%
rradina,
User Rank: Apprentice
3/16/2014 | 9:19:13 PM
Deactivation of FireEye's Automatic Response
There's a reason this was done.  Over the years protection software has triggered false alarms and quarantined needed programs and libraries rendering either software or subsystems (like printing) inoperable.  The last thing you want is to have thousands of POS lanes die because an automated response, triggered by a false positive, removed an important program or library module.
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