Wednesday, September 6, 2017

SPAM Alert - 9/6/17

If you have received an email with the title "CCC NOTICE!" or from the sender CCC IT DESK please delete the email. This is a SPAM message. If you clicked on the link please change your MyCCC password. If assistance with this is needed please contact the IT Helpdesk at 607-962-9555. As a reminder IT will never ask for your username or password.
Thank you,
CCC IT

Tuesday, August 8, 2017

SUNY Phishing Scam - August, 8th, 2017

IT has been made aware of a phishing scam that has hit a few SUNY campuses. The email is in regards to wiring cash matches for Workforce development projects. If you receive this message please delete it and do not click on any links or attachments. If you have clicked on a link or attachment please contact the IT Department at 607-962-9555.
Thank you,
CCC IT

Wednesday, August 2, 2017

Scam of the week 7/31/17

U.S. Government Issues NotPetya Malware Alert
The Department of Homeland Security's National Cybersecurity and Communications Integration Center (NCCIC) issued a technical alert Friday, July 28, warning businesses and other government entities to protect themselves against the newest "Petya" malware variant known as "NotPetya."

On June 27, 2017, the NCCIC was notified of Petya ransomware events occurring in multiple sectors in nations around the globe. The "NotPetya" malware variant works differently than Petya. It encrypts files with extensions from a hard-coded list. If the malware gains administrator rights, it encrypts the master boot record (MBR) making the infected Windows computers unusable.

NotPetya differs from previous Petya malware primarily in its propagation methods. NotPetya leverages multiple propagation methods to spread within an infected network using the lateral movement techniques below:
  • PsExec - a legitimate Windows administration tool
  • WMI - Windows Management Instrumentation, a legitimate Windows component
  • EternalBlue - the same Windows SMBv1 exploit used by WannaCry
  • EternalRomance - another Windows SMBv1 exploit
Microsoft released a security update for the MS17-010 SMB vulnerability on March 14, 2017, which addressed the EternalBlue and EternalRomance lateral movement techniques.
 
Technical Details: NCCIC received a sample of the NotPetya malware variant and performed a detailed analysis. It was discovered NotPetya encrypts the victim’s files with a dynamic, 128-bit key and creates a unique ID of the victim. However, there is no evidence of a relationship between the encryption key and the victim’s ID. This means it may not be possible for the attacker to decrypt the victim’s files even if the ransom is paid as NotPetya behaves more like destructive malware rather than ransomware.

NCCIC observed multiple methods used by NotPetya to propagate across a network. The first and most effective method uses a modified version of the Mimikatz tool to steal the user’s Windows credentials. The cyber threat actor can then use the stolen credentials, along with the native Windows Management Instrumentation Command Line (WMIC) tool or the Microsoft SysInternals utility, psexec.exe, to access other systems on the network.

Another method for propagation uses the EternalBlue exploit tool to target unpatched systems running a vulnerable version of SMBv1. In this case, the malware attempts to identify other hosts on the network by checking the compromised system’s IP physical address mapping table. Next, it scans for other systems that are vulnerable to the SMB exploit and installs the malicious payload.

NotPetya encrypts the compromised system’s files with a 128-bit Advanced Encryption Standard (AES) algorithm. The malware then writes a text file on the “C:\” drive that includes a static Bitcoin wallet location as well as unique personal installation key intended for the victim to use when making the ransom payment and the user’s Bitcoin wallet ID.

The NotPetya malware modifies the master boot record (MBR) to enable encryption of the master file table (MFT) and the original MBR and then reboots the system. Based on the encryption methods used, it appears unlikely that the files could be restored even if the attacker received the victim’s unique key and Bitcoin wallet ID.

The delivery mechanism of NotPetya during the June 27, 2017, event was determined to be the Ukrainian tax accounting software, M.E.Doc. The cyber threat actors used a backdoor to compromise M.E. Doc as far back as April 14, 2017. This backdoor allowed the threat actor to run arbitrary commands, exfiltrate files, and download and execute arbitrary exploits on the affected system. Organizations should treat systems with M.E.Doc installed as suspicious and should examine them for additional malicious activity.
Potential Impact: According to multiple reports, this NotPetya malware campaign has infected organizations in several sectors including finance, transportation, energy, commercial facilities, and healthcare. While these victims are business entities, other Windows systems are also at risk, such as:
  • Those that do not have patches installed for the vulnerabilities in MS17‑010, CVE-2017-0144, and CVE-2017-0145
  • Those who operate on the shared network of affected organizations

Negative Consequences of Malware Infection Include:
  • Temporary or permanent loss of sensitive or proprietary information
  • Disruption to regular operations
  • Financial losses incurred to restore systems and files
  • Potential harm to an organization’s reputation.

What You Should Do: NCCIC recommends against paying ransoms as doing so enriches malicious actors while offering no guarantee encrypted files will be released. In this NotPetya incident, the email address for payment validation was shut down by the email provider so payment is especially unlikely to lead to data recovery.

NCCIC recommends organizations coordinate with their security vendors to ensure appropriate coverage for this threat. Given the overlap of functionality and the similarity of behaviors between WannaCry and NotPetya, many of the available rulesets can protect against both malware types when appropriately implemented.

DHS encourages recipients who identify the use of tools or techniques discussed in this document to report information to DHS or law enforcement immediately. To request incident response resources or technical assistance, contact NCCIC at 888-282-0870. You can also report cyber crime incidents to the Internet Crime Complaint Center (IC3) at https://www.ic3.gov/default.aspx.
If You Have Dox Managed Services: You're protected! Systems that are covered under a Dox Managed Services Agreement already received the patches to fix the MS17-010 SMB vulnerability.

Prevention: Regularly train and remind staff not to click on any attachments or links they were not expecting, even from people they know. When in doubt, don't click. Instead, contact the sender and ask if it is legitimate. If you have Dox Managed Services, remind your staff of the importance of leaving their computers powered on but logged out when they leave on Tuesday nights so Dox can patch them automatically overnight.

Tuesday, July 11, 2017

Scam of the Week 7/11/17

Internet bad guys are increasingly trying to circumvent your spam filters and instead are targeting your users directly through their smartphone with Smishing attacks, which are hard to stop.

The practice has been around for a few years, but current new scams are mystery shopping invitations that start with a text, social engineering the victim to send an email to the scammers, and then get roped into a shopping fraud. 

These types of smishing attacks are also more and more used for Identity theft, bank account take-overs, or pressure employees into giving out personal or company confidential information.  Fortune magazine has a new article about this, and they lead with a video made by USA Today which is great to send to your users as a reminder.
I suggest you send employees, friends and family an email about this Scam Of The Week, feel free to copy/paste/edit:
"Bad guys are increasingly targeting you through your smartphone. They send texts that trick you into doing something against your own best interest. At the moment, there is a mystery shopping scam going on, starting out with a text invitation, asking you to send an email for more info which then gets you roped into the scam. 
Always, when you get a text, remember to "Think Before You Tap", because more and more, texts are used for identity theft, bank account take-overs and to pressure you into giving out personal or company confidential information.  Here is a short video made by USA Today that shows how this works: https://www.youtube.com/watch?v=ffck9C4vqEM
Obviously, an end-user who was trained to spot social engineering red flags (PDF) would think twice before falling for these scams. The link goes to a complimentary job aid that you can print out and pin to your wall. Feel free to distribute this PDF to as many people as you can.

Thursday, June 29, 2017

NotPetya Is a Cyber Weapon, Not Ransomware

Yesterday morning, after monitoring this new outbreak for 24 hours, I came to the conclusion we were dealing with cyber warfare, and not ransomware. Two separate reports coming from Comae Technologies and Kaspersky Lab experts confirm this now.
NotPetya is a destructive disk wiper similar to Shamoon which has been targeting Saudi Arabia in the recent past.
Note that Shamoon actually deleted files, NotPetya goes about it slightly different, it does not delete any data but simply makes it unusable by locking the files and then throwing away the key. The end result is the same.
Someone is hijacking known ransomware families and using them to attack Ukrainian computer systems. Guess who.
You never had a chance to recover your files. There are several technical indicators that NotPetya was only made to look as ransomware as a smoke screen:
  1. It never bothers to generate a valid infection ID
  2. The Master File Table gets overwritten and is not recoverable
  3. The author of the original Petya also made it clear NotPetya was not his work
This has actually happened earlier. Foreshadowing the NotPetya attack, the author of the AES-NI ransomware said in May he did not create the XData ransomware, which was also used in targeted attacks against Ukraine. Furthermore, both XData and NotPetya used the same distribution vector, the update servers of a Ukrainian accounting software maker.
Catalin Cimpanu, the Security News Editor for Bleepingcomputer stated: "The consensus on NotPetya has shifted dramatically in the past 24 hours, and nobody would be wrong to say that NotPetya is on the same level with Stuxnet and BlackEnergy, two malware families used for political purposes and for their destructive effects. Evidence is clearly mounting that NotPetya is a cyber-weapon and not just some overly-aggressive ransomware."
Cybersecurity has moved from Tech to a CEO and Board-level business issue
You did not sign up for this, but today it is abundantly clear that as an IT pro you are have just found yourself on the front line of 21-st century cyber war. Cybersecurity has moved from Tech to a CEO and Board-level business issue.
I strongly suggest you have another look at your defense-in-depth, and make sure to:
  1. Have weapons-grade backups
  2. Religiously patch
  3. Step users through new-school security awareness training

Wednesday, June 28, 2017

Looks Like A New Worldwide Ransomware Outbreak

Motherboard reported: "A quickly-spreading, world-wide ransomware outbreak has reportedly hit targets in Spain, France, Ukraine, Russia, and other countries." We hope we are wrong, but this could be another WannaCry. 
 
On Tuesday, a wide range of private businesses reportedly suffered ransomware attacks. Although it is not clear if every case is connected, at least several of them appear to be related to the same strain of malware."
Motherboard continued: "The attacks are similar to the recent WannaCry outbreak, and motherboard has seen several reports of infections shared by victims on Twitter. We were not able to immediately confirm the veracity of the reports, but several security researchers and firms also reported the attacks.

"We are seeing several thousands of infection attempts at the moment, comparable in size to Wannacry's first hours," Costin Raiu, a security researcher at Kaspersky Lab, told Motherboard in an online chat.
Judging by photos posted to Twitter and images provided by sources, many of the alleged attacks involved a piece of ransomware that displays red text on a black background, and demands $300 worth of bitcoin.
"If you see this text, then your files are no longer accessible, because they are encrypted," the text reads, according to one of the photos. "Perhaps you are busy looking for a way to recover your files, but don't waste your time. Nobody can recover your files without our decryption service."

Raiu believes the ransomware strain is known as Petya or Petrwrap, a well-known highly advanced ransomware strain that also encrypts the Master File Table. According to a tweet from anti-virus company Avira, the Petya attacks were taking advantage of the EternalBlue exploit previously leaked by the group known as The Shadow Brokers (Motherboard could not independently confirm this at the time of writing).
EternalBlue is the same exploit used in the WannaCry attacks; it takes advantage of a vulnerability in the SMB data-transfer protocol, and Microsoft has since patched the issue. However, whether customers apply that patch is another matter.
Security researchers from Kaspersky Lab reported that the ransomware hit Russia, Ukraine, Spain, France, among others. Several people on Twitter reported witnessing or hearing reports of the outbreak in their respective countries, and across a wide range of industries. Companies around the world also reported computer outages.

Monday, June 5, 2017

New York State DMV Phishing Scam

Online reporter Doug Olenick at SC Media was the first to point to a press release from the NY State Department of Motor Vehicles warning about a phishing scam where New York drivers are being targeted, stating they have 48 hours to pay a fine or have their driver's license revoked. This may happen in your state as well, so this is your heads-up.
The NY DMV alerted motorists that the scam is just bait to entice them to click on a “payment” link that will in turn infect their workstation with malware. The DMV does not know how many people have been affected, but Owen McShane, director of investigations at New York State DMV, said calls came in from New York City, Albany and Syracuse.
Olenick was able to get a bit more detail: "The malware being dropped came in two categories. The first simply placed a tracking tool on the victim's computer to see what websites were visited; and the second, more nefarious, attempted to acquire a variety of personally identifiable information, such as names, Social Security numbers, date of birth and credit card information."
There are several social engineering red flags (PDF) that show the email is a scam. The text of the email posted supplied by NY DMV shows the attack contains several punctuation errors, the supplied links lead to sites without an ny.gov URL, tied to the fact that the state would never make such a request. Here is how the phishing email reads: License_Phish-Example.png
“The Department of Motor Vehicles does not send emails urging motorists to pay traffic tickets within 48 hours or lose your license,” said Terri Egan, DMV deputy executive commissioner, in a statement.
McShane noted that this scam is similar to one that hit the state about 18 months ago. The DMV, he said, is often used as bait in phishing attacks. Most previous attacks only lasted for 24 to 48 hours and this attack seems to have wrapped up too at this point, he added. This means that the bad guys may have moved on to other states with this attack, so...
I suggest you send employees, friends and family an email about this Scam Of The Week, feel free to copy/paste/edit:
"Here is a reminder that you need to be alert for fake emails that look like they come from your local police or State Dept of Motor Vehicles (DMV) claiming you have a traffic violation. At the moment, there is a local scam in New York that falsely states you have outstanding violations you need to either pay for or refute, and if you don't your license will be revoked. This scam may spread to the rest of America soon. Remember that citations are never emailed with links in them, or sent out with an email attachment, and report scams like this to your local police department." 
Obviously, an end-user who was trained to spot social engineering red flags like this would have thought before they clicked.