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Category — Android Malware
Vishing Goes High-Tech: New 'Letscall' Malware Employs Voice Traffic Routing

Vishing Goes High-Tech: New 'Letscall' Malware Employs Voice Traffic Routing

Jul 07, 2023 Mobile Security / Malware
Researchers have issued a warning about an emerging and advanced form of voice phishing ( vishing ) known as " Letscall ." This technique is currently targeting individuals in South Korea. The criminals behind "Letscall" employ a multi-step attack to deceive victims into downloading malicious apps from a counterfeit Google Play Store website. Once the malicious software is installed, it redirects incoming calls to a call center under the control of the criminals. Trained operators posing as bank employees then extract sensitive information from unsuspecting victims. To facilitate the routing of voice traffic, "Letscall" utilizes cutting-edge technologies such as voice over IP (VOIP) and WebRTC. It also makes use of Session Traversal Utilities for NAT (STUN) and Traversal Using Relays around NAT (TURN) protocols, including Google STUN servers, to ensure high-quality phone or video calls and bypass NAT and firewall restrictions. The "Letscall...
Android Users Beware: New Hook Malware with RAT Capabilities Emerges

Android Users Beware: New Hook Malware with RAT Capabilities Emerges

Jan 19, 2023 Mobile Security / Android
The threat actor behind the  BlackRock  and  ERMAC  Android banking trojans has unleashed yet another malware for rent called  Hook  that introduces new capabilities to access files stored in the devices and create a remote interactive session. ThreatFabric, in a  report  shared with The Hacker News, characterized Hook as a novel ERMAC fork that's advertised for sale for $7,000 per month while featuring "all the capabilities of its predecessor." "In addition, it also adds to its arsenal Remote Access Tooling (RAT) capabilities, joining the ranks of families such as  Octo  and  Hydra , which are capable performing a full Device Take Over (DTO), and complete a full fraud chain, from PII exfiltration to transaction, with all the intermediate steps, without the need of additional channels," the Dutch cybersecurity firm said. A majority of the financial apps targeted by the malware are located in the U.S., Spain, Australia, Poland, ...
How AI Is Transforming IAM and Identity Security

How AI Is Transforming IAM and Identity Security

Nov 15, 2024Machine Learning / Identity Security
In recent years, artificial intelligence (AI) has begun revolutionizing Identity Access Management (IAM), reshaping how cybersecurity is approached in this crucial field. Leveraging AI in IAM is about tapping into its analytical capabilities to monitor access patterns and identify anomalies that could signal a potential security breach. The focus has expanded beyond merely managing human identities — now, autonomous systems, APIs, and connected devices also fall within the realm of AI-driven IAM, creating a dynamic security ecosystem that adapts and evolves in response to sophisticated cyber threats. The Role of AI and Machine Learning in IAM AI and machine learning (ML) are creating a more robust, proactive IAM system that continuously learns from the environment to enhance security. Let's explore how AI impacts key IAM components: Intelligent Monitoring and Anomaly Detection AI enables continuous monitoring of both human and non-human identities , including APIs, service acc...
Experts Uncover Two Long-Running Android Spyware Campaigns Targeting Uyghurs

Experts Uncover Two Long-Running Android Spyware Campaigns Targeting Uyghurs

Nov 11, 2022
Two long-running surveillance campaigns have been found targeting the Uyghur community in China and elsewhere with Android spyware tools designed to harvest sensitive information and track their whereabouts. This encompasses a previously undocumented malware strain called BadBazaar and updated variants of an espionage artifact dubbed  MOONSHINE  by researchers from the University of Toronto's Citizen Lab in September 2019. "Mobile surveillance tools like BadBazaar and MOONSHINE can be used to track many of the 'pre-criminal' activities, actions considered indicative of religious extremism or separatism by the authorities in Xinjiang," Lookout  said  in a detailed write-up of the operations. The BadBazaar campaign, according to the security firm, is said to date as far back as late 2018 and comprise 111 unique apps that masquerade as benign video players, messengers, religious apps, and even TikTok. While these samples were distributed through Uyghur-language ...
cyber security

Creating, Managing and Securing Non-Human Identities

websitePermisoCybersecurity / Identity Security
A new class of identities has emerged alongside traditional human users: non-human identities (NHIs). Permiso Security's new eBook details everything you need to know about managing and securing non-human identities, and strategies to unify identity security without compromising agility.
Hackers Using Vishing to Trick Victims into Installing Android Banking Malware

Hackers Using Vishing to Trick Victims into Installing Android Banking Malware

Oct 12, 2022
Malicious actors are resorting to voice phishing (vishing) tactics to dupe victims into installing Android malware on their devices, new research from ThreatFabric reveals. The Dutch mobile security company said it identified a network of phishing websites targeting Italian online-banking users that are designed to get hold of their contact details. Telephone-oriented attack delivery (TOAD), as the social engineering technique is called, involves calling the victims using previously collected information from the fraudulent websites. The caller, who purports to be a support agent for the bank, instructs the individual on the other end of the call to install a security app and grant it extensive permissions, when, in reality, it's malicious software intended to gain remote access or conduct financial fraud. In this case, it leads to the deployment of an Android malware dubbed  Copybara , a mobile trojan first detected in November 2021 and is primarily used to perform on-devic...
FluBot Android Spyware Taken Down in Global Law Enforcement Operation

FluBot Android Spyware Taken Down in Global Law Enforcement Operation

Jun 01, 2022
An international law enforcement operation involving 11 countries has culminated in the takedown of a notorious mobile malware threat called  FluBot . "This Android malware has been spreading aggressively through SMS, stealing passwords, online banking details and other sensitive information from infected smartphones across the world," Europol  said  in a statement. The "complex investigation" included authorities from Australia, Belgium, Finland, Hungary, Ireland, Romania, Spain, Sweden, Switzerland, the Netherlands, and the U.S. FluBot , also called Cabassous, emerged in the wild in December 2020, masking its insidious intent behind the veneer of seemingly innocuous package tracking applications such as FedEx, DHL, and Correos.  It primarily spreads via smishing (aka SMS-based phishing) messages that trick unsuspecting recipients into clicking on a link to download the malware-laced apps. Once launched, the app would proceed to request access to Android...
Another Set of Joker Trojan-Laced Android Apps Resurfaces on Google Play Store

Another Set of Joker Trojan-Laced Android Apps Resurfaces on Google Play Store

May 09, 2022
A new set of trojanized apps spread via the Google Play Store has been observed distributing the notorious Joker malware on compromised Android devices. Joker, a  repeat   offender , refers to a class of harmful apps that are used for billing and SMS fraud, while also performing a number of actions of a malicious hacker's choice, such as stealing text messages, contact lists, and device information. Despite continued attempts on the part of Google to scale up its defenses, the apps have been continually iterated to search for gaps and slip into the app store undetected. "They're usually spread on Google Play, where scammers download legitimate apps from the store, add malicious code to them and re-upload them to the store under a different name," Kaspersky researcher Igor Golovin  said  in a report published last week. The trojanized apps, taking the place of their removed counterparts, often appear as messaging, health tracking, and PDF scanner apps that, once...
SharkBot Banking Malware Spreading via Fake Android Antivirus App on Google Play Store

SharkBot Banking Malware Spreading via Fake Android Antivirus App on Google Play Store

Mar 07, 2022
The threat actor behind a nascent Android banking trojan named  SharkBot  has managed to evade Google Play Store security barriers by masquerading as an antivirus app. SharkBot, like its malware counterparts  TeaBot ,  FluBot , and  Oscorp  (UBEL), belongs to a category of financial trojans capable of siphoning credentials to initiate money transfers from compromised devices by circumventing multi-factor authentication mechanisms. It first emerged on the scene in November 2021. Where SharkBot stands apart is in its ability to carry out the unauthorized transactions via Automatic Transfer Systems (ATS), which stands in contrast to TeaBot, which requires a live operator to interact with the infected devices to conduct the malicious activities. "The ATS features allow the malware to receive a list of events to be simulated, and they will be simulated in order to do the money transfers," Alberto Segura and Rolf Govers, malware analysts at cybersecurity fir...
TeaBot Android Banking Malware Spreads Again Through Google Play Store Apps

TeaBot Android Banking Malware Spreads Again Through Google Play Store Apps

Mar 02, 2022
An Android banking trojan designed to steal credentials and SMS messages has been observed once again sneaking past Google Play Store protections to target users of more than 400 banking and financial apps, including those from Russia, China, and the U.S. "TeaBot RAT capabilities are achieved via the device screen's live streaming (requested on-demand) plus the abuse of Accessibility Services for remote interaction and key-logging," Cleafy researchers  said  in a report. "This enables Threat Actors (TAs) to perform ATO (Account Takeover) directly from the compromised phone, also known as 'On-device fraud.'" Also known by the names Anatsa and Toddler, TeaBot first  emerged  in May 2021, camouflaging its malicious functions by posing as seemingly innocuous PDF document and QR code scanner apps that are distributed via the official Google Play Store instead of third-party apps stores or via fraudulent websites. Further research published by Swiss cyber...
Medusa Android Banking Trojan Spreading Through Flubot's Attacks Network

Medusa Android Banking Trojan Spreading Through Flubot's Attacks Network

Feb 08, 2022
Two different Android banking Trojans, FluBot and Medusa, are relying on the same delivery vehicle as part of a simultaneous attack campaign, according to new research published by ThreatFabric. The ongoing side-by-side infections, facilitated through the same smishing (SMS phishing) infrastructure, involved the overlapping usage of "app names, package names, and similar icons," the Dutch mobile security firm said. Medusa, first discovered targeting Turkish financial organizations in July 2020, has undergone several iterations, chief among which is the ability to abuse accessibility permissions in Android to siphon funds from banking apps to an account controlled by the attacker. "Medusa sports other dangerous features like keylogging, accessibility event logging, and audio and video streaming — all these capabilities provide actors with almost full access to [a] victim's device," the researchers  said . The malware-ridden apps used in conjunction with Flu...
New CapraRAT Android Malware Targets Indian Government and Military Personnel

New CapraRAT Android Malware Targets Indian Government and Military Personnel

Feb 07, 2022
A politically motivated advanced persistent threat (APT) group has expanded its malware arsenal to include a new remote access trojan (RAT) in its espionage attacks aimed at Indian military and diplomatic entities. Called  CapraRAT  by Trend Micro, the implant is an Android RAT that exhibits a high "degree of crossover" with another Windows malware known as CrimsonRAT that's associated with Earth Karkaddan, a threat actor that's also tracked under the monikers APT36, Operation C-Major, PROJECTM, Mythic Leopard, and Transparent Tribe. The first concrete signs of APT36's existence  appeared  in  2016  as the group began distributing information-stealing malware through phishing emails with malicious PDF attachments targeting Indian military and government personnel. The group is believed to be of  Pakistani origin  and operational since at least 2013. The threat actor is also known to be consistent in its modus operandi, with the attacks predom...
Researchers Discover PhoneSpy Malware Spying on South Korean Citizens

Researchers Discover PhoneSpy Malware Spying on South Korean Citizens

Nov 10, 2021
An ongoing mobile spyware campaign has been uncovered snooping on South Korean residents using a family of 23 malicious Android apps to siphon sensitive information and gain remote control of the devices. "With more than a thousand South Korean victims, the malicious group behind this invasive campaign has had access to all the data, communications, and services on their devices," Zimperium researcher Aazim Yaswant said. "The victims were broadcasting their private information to the malicious actors with zero indication that something was amiss." The Dallas-based mobile security company dubbed the campaign " PhoneSpy ." Zimperium did not attribute the spyware to a known threat actor. "The evidence surrounding PhoneSpy shows a familiar framework that has been passed around for years, updated by individuals and shared within private communities and back channels until assembled into what we see in this variation today," Richard Melick, the co...
Experts Uncover Mobile Spyware Attacks Targeting Kurdish Ethnic Group

Experts Uncover Mobile Spyware Attacks Targeting Kurdish Ethnic Group

Sep 08, 2021
Cybersecurity researchers on Tuesday released new findings that reveal a year-long mobile espionage campaign against the Kurdish ethnic group to deploy two Android backdoors that masquerade as legitimate apps. Active since at least March 2020, the attacks leveraged as many as six dedicated Facebook profiles that claimed to offer tech and pro-Kurd content — two aimed at Android users while the other four appeared to provide news for the Kurdish supporters — only to share links to spying apps on public Facebook groups. All the six profiles have since been taken down. "It targeted the Kurdish ethnic group through at least 28 malicious Facebook posts that would lead potential victims to download Android 888 RAT or SpyNote," ESET researcher Lukas Stefanko  said . "Most of the malicious Facebook posts led to downloads of the commercial, multi-platform 888 RAT, which has been available on the black market since 2018." The Slovakian cybersecurity firm attributed the at...
Beware! New Android Malware Hacks Thousands of Facebook Accounts

Beware! New Android Malware Hacks Thousands of Facebook Accounts

Aug 09, 2021
A new Android trojan has been found to compromise Facebook accounts of over 10,000 users in at least 144 countries since March 2021 via fraudulent apps distributed through Google Play Store and other third-party app marketplaces. Dubbed " FlyTrap ," the previously undocumented malware is believed to be part of a family of trojans that employ social engineering tricks to breach Facebook accounts as part of a session hijacking campaign orchestrated by malicious actors operating out of Vietnam, according to a  report  published by Zimperium's zLabs today and shared with The Hacker News. Although the offending nine applications have since been pulled from Google Play, they continue to be available in third-party app stores, "highlighting the risk of sideloaded applications to mobile endpoints and user data," Zimperium malware researcher Aazim Yaswant said. The list of apps is as follows - GG Voucher (com.luxcarad.cardid)  Vote European Football (com.gardengu...
UBEL is the New Oscorp — Android Credential Stealing Malware Active in the Wild

UBEL is the New Oscorp — Android Credential Stealing Malware Active in the Wild

Jul 28, 2021
An Android malware that was observed abusing accessibility services in the device to hijack user credentials from European banking applications has morphed into an entirely new botnet as part of a renewed campaign that began in May 2021. Italy's CERT-AGID, in late January, disclosed details about  Oscorp , a mobile malware developed to attack multiple financial targets with the goal of stealing funds from unsuspecting victims. Its features include the ability to intercept SMS messages and make phone calls, and carry out overlay attacks for more than 150 mobile applications by making use of lookalike login screens to siphon valuable data. The malware was distributed through malicious SMS messages, with the attacks often conducted in real-time by posing as bank operators to dupe targets over the phone and surreptitiously gain access to the infected device via WebRTC protocol and ultimately conduct unauthorized bank transfers. While no new activities were reported since then, it a...
DroidMorph Shows Popular Android Antivirus Fail to Detect Cloned Malicious Apps

DroidMorph Shows Popular Android Antivirus Fail to Detect Cloned Malicious Apps

Jun 21, 2021
A new research published by a group of academics has found that anti-virus programs for Android continue to remain vulnerable against different permutations of malware, in what could pose a serious risk as malicious actors evolve their toolsets to better evade analysis. "Malware writers use stealthy mutations (morphing/obfuscations) to continuously develop malware clones, thwarting detection by signature based detectors," the researchers  said . "This attack of clones seriously threatens all the mobile platforms, especially Android." The findings were published in a study last week by researchers from Adana Science and Technology University, Turkey, and the National University of Science and Technology, Islamabad, Pakistan. Unlike iOS, apps can be downloaded from third-party sources on Android devices, raising the possibility that unwitting users can install unverified and lookalike apps that clone a legitimate app's functionality but are built to trick tar...
Attention! FluBot Android Banking Malware Spreads Quickly Across Europe

Attention! FluBot Android Banking Malware Spreads Quickly Across Europe

Apr 28, 2021
Attention, Android users! A banking malware capable of stealing sensitive information is "spreading rapidly" across Europe, with the U.S. likely to be the next target. According to a new analysis by  Proofpoint , the threat actors behind FluBot (aka  Cabassous ) have branched out beyond Spain to target the U.K., Germany, Hungary, Italy, and Poland. The English-language campaign alone has been observed to make use of more than 700 unique domains, infecting about 7,000 devices in the U.K. In addition, German and English-language SMS messages were found being sent to U.S. users from Europe, which Proofpoint suspects could be the result of malware propagating via contact lists stored on compromised phones. A concerted campaign aimed at the U.S. is yet to be detected. FluBot, a nascent entry in the banking trojan landscape, began its operations late last year, with campaigns leveraging the malware infecting more than 60,000 users in Spain, according to an analysis published b...
Over 750,000 Users Downloaded New Billing Fraud Apps From Google Play Store

Over 750,000 Users Downloaded New Billing Fraud Apps From Google Play Store

Apr 20, 2021
Researchers have uncovered a new set of fraudulent Android apps in the Google Play store that were found to hijack SMS message notifications for carrying out billing fraud. The apps in question primarily targeted users in Southwest Asia and the Arabian Peninsula, attracting a total of 700,000 downloads before they were discovered and removed from the platform. The findings were reported independently by cybersecurity firms  Trend Micro  and  McAfee . "Posing as photo editors, wallpapers, puzzles, keyboard skins, and other camera-related apps, the malware embedded in these fraudulent apps hijack SMS message notifications and then make unauthorized purchases," researchers from McAfee said in a Monday write-up. The fraudulent apps belong to the so-called " Joker " (aka Bread) malware, which has been found to repeatedly sneak past Google Play defenses over the past four years, resulting in Google removing no fewer than 1,700 infected apps from the Play Store as of...
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