In my previous post “Google CTF (2018): Beginners Quest - PWN Solutions (1/2)”, we covered the first set of PWN solutions for the Beginners Quest, which touc...
Even though, the numbers still seem big, we can say that a 59 day improvement since 2014 is a good thing! With the increase of the cyber security sector, and security awareness, we are slowly getting to a point where breaches are becoming more and more detectable. Mandiant also reported that besides the 146 days it takes them to discover that a company has been compromised, it takes approximately 56 days for a company to internally discover a breach, and a shocking 320 days before a 3rd party discovers the breach. It is also stated that over 53% of the breaches are reported by external entities, while 47% of the breaches are reported internally.
With the increase of breaches, there was also an increase in the way attacks were carried out on companies. Ranging from a huge increase in “disruptive attacks”, to exporting of PII, and the exploitation of network devices. These three categories of attacks contained the following threat vectors:
Though all cyber-attacks on a company are disruptive to some extent, many specific ones listed in the M-Trends report, related to attacks that tried to bring attention to the attacker, and attacks that released confidential information to the public - resulting in reputation loss, consequential embarrassment, and the damaging of critical business functions. Such disruptive attacks can bring major consequences to an affected company – from financial loss to the loss of intellectual property.
Praesidio - in their 2016 infographic - estimated that the average time to resolve a cyber-attack was 46 days, with an average cost to participating organizations of $1,988,544 during the 46-day period. This was representative of a 22% increase from last years estimated average of $1,593,627, which was based upon a 45-day resolution period.
With the first prominence of Ransomware in May of 2005, ransomware has grown to be one of the biggest threats in today’s digital world. Paired together with the increasing threats of blackmail and extortion, companies are having a hard time keeping their data safe, as well as differentiating from real and fake threats that might try to extort the company for money in exchange for stolen documents.
The Russian software company Kaspersky, in their 2014-2016 KSN Ransomware Report, stated that between the years of 2014-2015 and 2015-2016, there was an 1.2 increase in the amount of Ransomware seen. As well as a 5.5 times increase in the amount of crypto ransomware used, along with a 4 times increase in the rise of Mobile Ransomware.
With that rise in Ransomware, there was also a 6.3% rise in the amount of corporate useres affected by Ransomware
Even though Ransomware is done through the use of Malware or Malicious Software, Extortion kind of falls in line with “Ransom”. In many cases, unpaid ransoms usually leads to the public release of confidential documents - it’s simply done to embarrass the company and bring either financial losses, or reputation damage. Extortion can come in many forms; from emails to c-level executives, and emails threatening the use of a DDoS attack on the company, to the release of “possible” stolen documents and intellectual property.
Much of the ransomware nowadays is requiered to be paid in deregulated currency such as Bitcoins, a crypto currency that is hard to track. And based on Mandiat’s report, the cost of the Ransomware is usually around the same value as the data the attackers stole or encrypted; giving us insight that many of these malicious attackers have a good idea of what they are dealing with.
One of these recent extortion breaches can be linked to Goldcorp’s Extortion Bid. The hackers from that breach leaked data that included employee login IDs and passwords, salary and budget documents, and other sensitive corporate and personal information about Goldcorp and its employees.
Based on Praesidio’s infographic, it’s estimated that around 10,000 records are stolen per incident, and can lead to the total average cost of $3.72 million in loses. These losses can be from abnormal turnover of customers, increased customer acquisition activities, reputation losses, and diminished goodwill. The average losses in a breach can include:
The only downside to extortion based attacks is that it’s hard to pinpoint if the source is credible or not, and even if they are, and the ransomware is paid… what are the chances that the attackers will release the data anyways? Even if data is released, it can be taken down fairly quickly, that’s why many attackers resort to using pastebin and P2P sites like Tor or Torrents to spread the leak. Making it much harder to contain the leak and prevent the spread of propriety information.
The deletion and damaging of systems speaks for itself, the after effects of such an attack can be devastating to a company - putting production at a standstill, causing major outages worldwide for users, and incurring massive financial losses. In the M-Trend’s report it is stated that in a lot of breaches, threat actors had access to system-level accounts which were capable of deleting and damaging data/system… but instead they decided to covertly steal credit card data, PII, and intellectual property; going to show that many malicious actors are financially motivated and really don’t care on disrupting the company’s operations.
Mandiant in the M-Trend’s report also stated, and I quote:
“We’ve investigated multiple incidents where attackers wiped critical business systems and, in some cases, forced companies to rely on paper and telephone-based processes for days or weeks as they recovered their systems and data. We have even seen attackers wipe system backup infrastructure in an effort to keep victims offline longer.”
Proving, that many of these companies either didn’t have proper backups, or business continuity plans put in place, for such incidents.
Though not heard of, malicious actors at times will attempt to modify company repositories and critical business data to impact certain aspects of the company and its operations. For example, if a company was in charge of creating iOS and Android applications, a malicious actor can edit the code repositories for the applications and implement a back door for personal gain. Now, business critical data is any kind of information or data that a business would not be able to recover if it was lost. This could include things such as:
So if during a breach this information was modified, deleted, or tampered with any way, it can cause lots of confusion and damages to the company, partners, suppliers, and more!
PII or Personally Identifiable Information, is information that can be used on its own or with other information to identify, contact, or locate a single person, or to identify an individual in context. Much of this PII data can be used to gain private information such as Social Security, credit cards, etc. At times during breaches PII is also stolen as a byproduct of copying over files, and isn’t of particular interest to an attacker, but other times - it’s very highly sought. Mandiant so far has no idea how malicious attackers are leveraging the PII data, they do believe that they are using it for the following:
Phishing emails are not the thing of the past, year after year they come up with new spam campaigns to try and infect users with anything from backdoors to crypto ransomware. All the user has to do is click on a link or an attachment, and the malicious actor can gain access to the users system. From there, reconnaissance can take place to footprint servers and other computer in search of passwords, domain accounts, PII, and anything else the attacker might favorite.
Phishing can come in many forms - spear phishing campaigns are carried out against certain users with relatable information including names, dates, and personal facts. While whaling attacks are carried out against c-level executives, and if successful can bode lots of success for an attacker. Phishing can also be carried out through the phone in the form of a vishing attack, where the malicious actor might try to harvest usernames, passwords, and anything else they might like, all through social engineering.
There were many famous breaches from 2014-2016 that used social engineering and phishing to steal employee W-2 Forms, and Tax Information, along with their PII such as name, date of birth, address, and social security. You can read more about these types of breaches here!
Reading about attackers compromising networking equipment such as switches, routers, and firewalls is kind of shocking. These devices are critical components to a company’s infrastructure and are usually overlooked by incident response teams and forensic experts as being compromised. Mandiant in their report stated that they have observed such compromises of these networking devices, and have identified backdoors and means of remote access to either control, damage, or circumvent security during a breach.
Some of us reading this might be wondering - as to why attackers would want to compromise these networking devices? Well it’s pretty simple really, some examples provided by Madiant are:
The only problem with these types’ attacks is that we lack the tools that can discover such compromises, and even if we are able to analyze such devices, it’s very time consuming and complex to scale properly during a single incident response or forensic examination.
Such attacks on networking devices consisted of:
Overall much of these attacks are outdated, but we have to understand that these attacks were either possible though means of weak company security, or there weren’t proper policies and procedures in place. Some of you might think as to how policies and procedures could help in a situation like this, and I will explain so in the next section of “mitigation strategies” below.
In today’s world nothing is 100% secure, and your company will encounter a breach at least once. Even though a breach in inevitable, you can takes steps to protect yourself, your data, and make it much harder for a malicious actor to exploit your company.
Mandiant in their M-Trends report stated that many of the companies they worked with were unable to identify ongoing security threats within their company. For example, during a Red Team test, less than 10% of the companies responded appropriately to a Mimikatz AV detection. For those that don’t know what mimikatz is, it’s a tool that can extract plaintext passwords, hashes, Kerberos tickets from memory, and also preform pass-the-hash. Malicious actors can also dump the SAM File that can provide them with user passwords.
Many malicious actors can gain these credentials from hashes, or memory dumps due to weak password policies, and improper hashing + salting. So to protect yourself and increase security, make sure you do the following:
As for your infrastructure devices, security infrastructure, and tools such as SIEM’s, vaults, HIPS, Firewall, ACLs:
With those suggestions there are also a few things to consider about your current security:
That’s all for this post! Hope you enjoyed reading it as much as I enjoyed writing it. Please provide any feedback, comments, or suggestions in the comments below! Thanks!