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Cybercriminals Used Facebook Ads to Lure Users into Installing the Fake Clubhouse App

 

Audio-only app Clubhouse gained huge success over the last few months and now attackers are misusing the reputation and fame earned by the app by delivering Facebook ads, wherein they promote the Clubhouse app for PC to deliver the malware. Notably, the attackers have used the old tactics again because the PC version of the Clubhouse app is not yet released.

The Clubhouse app has nearly 8 million downloads so far. Therefore, malware designers have been busy taking advantage of Clubhouse's rising popularity, creating what they claim is a Clubhouse client for PCs, and then promoting those ads on Facebook to get users to download the app. 

As per a report by TechCrunch, this fake app is full of links to malware. The app also contains a screenshot of the fictional Clubhouse app for desktops, as visualized by the threat actors. Once users download and install the malicious app, it contacts a “command and control” server to perform various tasks. According to the report, running the app inside a secure “sandbox” disclosed that the malicious app tries to corrupt a desktop with ransomware.

Every Facebook page posing as Clubhouse only had a handful of likes but were still running at the time of publication. When TechCrunch reached out to Facebook, the company didn’t answer as to how many users have clicked on the ads directing to the fake Clubhouse websites.

In total, nine ads were posted this week between Tuesday and Thursday. Most of the ads stated a similar tagline that read: Clubhouse “is now available for PC.” While another featured a photo of co-founders Paul Davidson and Rohan Seth. Meanwhile, the clubhouse did not return a request for comment.

Fake advertisements can appear on social media platforms frequently and can slip through the net with ease, so it is important that account owners are aware of the risks with all advertisements on social media. Although social networks will take down any fake adverts once reported, the user must also err on the side of caution when clicking on any advert, and further research is always advised before clicking further into downloading anything. Therefore, this incident brings light to the fact that not all ads can be trusted when you are on any social media platform.

6.15 Lakh Facebook Users' Account Compromised by Facebook Ad Phishing Campaign

 



A large scale ad phishing campaign that has compromised more than 6.15 lakh Facebook users' account was exposed by cybersecurity researchers. This ad phishing campaign is spread in at least 50 countries and reportedly the accounts are being compromised by exploiting the pages of open source repository GitHub. 
 
ThreatNix which is a Nepal-based security firm, while giving insights into the attack, said that the number of affected users is rapidly increasing, at an unusual pace of over 100 entries per minute and the situation is expected to worsen furthermore if necessary steps are not taken in due time.  
 
The researchers noted, "the phishing campaign by a sponsored Facebook post that was offering 3GB mobile data from Nepal Telecom and was redirecting to a phishing site hosted on GitHub page; the attackers created different pages imitating the legit pages from numerous entities. The attackers were using the profile picture and name of Nepal Telecom". 
 
Additionally, the cybersecurity firm claimed in a statement this week, “similar Facebook posts were used to target the Facebook users from Pakistan, Tunisia, Norway, Malaysia, Philippines, and Norway”. As per the findings of the firm, this ad phishing campaign is using localized Facebook posts and sending links inside these Facebook posts which redirected to a static GitHub page website that contained a login panel for Facebook. 
 
The cybersecurity researchers also noted that “after redirecting to a static GitHub page it forwarded the phished credentials to two endpoints one to a Firestore database and another to a domain which was owned by the phishing group”. The researchers also unearthed that nearly 500 GitHub repositories containing phishing pages are part of the identical phishing campaign. 
 
According to cybersecurity firm ThreatNix, they are working in unison with other authorities to “bring down the phishing infrastructure by reserving the information related to the domain”. The attackers were using Bitly link’s which pointed towards a benign page and when the Facebook ad was approved it was getting converted to point to the phishing domain, they used Bitly’s link because now Facebook takes all necessary steps to ensure that such phishing pages are not approved for ads.

Facebook Files a Lawsuit Against a Company for Running Malicious Ads?



Reportedly, Facebook filed a lawsuit against a “Chinese Company” that allegedly put user accounts at large only to put up suspicious ads on the platform.

The running and distribution of advertisements which were about “counterfeit goods” and “dietary pills” was the only purpose of compromising the accounts in question.

The aforementioned company, per reports, goes by the name of “ILikeAD Media International Company Ltd.” It is, according to sources represented by the authors of the malware scheme, namely, "Huang Toa" and "Chen Xiao Cong".

Purportedly, the aforementioned authors apparently employed two basic ploys to mask their actual aim.

Using images of celebrities, aka “celeb bait” to lure people into clicking on them is one of them and the other happens to be something called “Cloaking”.

Cloaking refers to the act of hiding something from the Facebook systems so that the real destination of a link and advertisement is concealed.

The ad after getting clicked on would lead the users to the genuine “landing page” whereas Facebook would be tricked into seeing a version that’s legitimate according to the policies and terms of the advertising policies.

Per Facebook, in most cases, Cloaking is foolproof as it hardly ever leaves tracks behind, making it pretty tough to realize the identity of actors. This majorly happens to be the reason why there are no specific rules about this.


Reportedly, another attack along the same lines was observed when fake PDF file editor was being pushed only to steal Amazon and Facebook session cookies. The malware at work, per reports, goes by the name of “Socelars”.

Along with session cookies, other data like access tokens, email addresses, credit card information, account IDs et cetera have allegedly constituted a part of the compromised data.

The cookies are later on used to link with several Facebook URLs where one among them accesses the “account_billing” directory.

The information allowing users to call a Facebook Graph API and extract data from the users’ Ads Manager settings is the major part of what’s inside the directory.

The malware which was being distributed via numerous websites was in actuality a new “Trojan” which had almost nothing in common with the other types.

There’s no knowing if the above-mentioned malware has anything to do with the organization that Facebook sued but it surely suits the description.

All the users who had fallen prey to the schemes pulled off by the cyber-cons were handsomely compensated for, along with getting their accounts secured and free of any unauthorized access.

Facebook is very well aware of the jeopardy its users almost got into and is all-in for taking precautionary measures to erase any chances of repetition.