Thursday , June 5 2025
telco

China-linked spies target Asian Telcos since 2021

A group believed to be linked to China has hacked multiple telecom operators in an Asian country since 2021, according to the Symantec Threat Hunter Team.

The attackers used tools linked to Chinese spying groups. They installed several backdoors on targeted companies’ networks to steal passwords.

CVSS 9.6: IBM QRadar & Cloud Pak Security Flaws Exposed

IBM has issued a security advisory for vulnerabilities in its QRadar Suite Software and Cloud Pak for Security platforms. These...
Read More
CVSS 9.6: IBM QRadar & Cloud Pak Security Flaws Exposed

ALERT
Thousands of IP addresses compromised nationwide: CIRT warn

As Bangladesh prepares for the extended Eid-ul-Adha holidays, the BGD e-GOV Computer Incident Response Team (CIRT) has issued an urgent...
Read More
ALERT  Thousands of IP addresses compromised nationwide: CIRT warn

New Android Malware ‘Crocodilus’ Targets Banks in 8 Countries

In March 2025, the Threatfabric mobile Threat Intelligence team identified Crocodilus, a new Android banking Trojan designed for device takeover....
Read More
New Android Malware ‘Crocodilus’ Targets Banks in 8 Countries

Qualcomm Patches 3 Zero-Days Used in Targeted Android Attacks

Qualcomm has issued security patches for three zero-day vulnerabilities in the Adreno GPU driver, affecting many chipsets that are being...
Read More
Qualcomm Patches 3 Zero-Days Used in Targeted Android Attacks

Critical RCE Flaw Patched in Roundcube Webmail

Roundcube Webmail has fixed a critical security flaw that could enable remote code execution after authentication. Disclosed by security researcher...
Read More
Critical RCE Flaw Patched in Roundcube Webmail

Hacker claim Leak of Deloitte Source Code & GitHub Credentials

A hacker known as "303" claim to breach the company's systems and leaked sensitive internal data on a dark web...
Read More
Hacker claim Leak of Deloitte Source Code & GitHub Credentials

CISA Issued Guidance for SIEM and SOAR Implementation

CISA and ACSC issued new guidance this week on how to procure, implement, and maintain SIEM and SOAR platforms. SIEM...
Read More
CISA Issued Guidance for SIEM and SOAR Implementation

Linux flaws enable password hash theft via core dumps in Ubuntu, RHEL, Fedora

The Qualys Threat Research Unit (TRU) found two local information-disclosure vulnerabilities in Apport and systemd-coredump. Both issues are race-condition vulnerabilities....
Read More
Linux flaws enable password hash theft via core dumps in Ubuntu, RHEL, Fedora

Australia enacts mandatory ransomware payment reporting

New ransomware payment reporting rules take effect in Australia yesterday (May 30) for all organisations with an annual turnover of...
Read More
Australia enacts mandatory ransomware payment reporting

Why Govt Demands Foreign CCTV Firms to Submit Source Code?

Global makers of surveillance gear have clashed with Indian regulators in recent weeks over contentious new security rules that require...
Read More
Why Govt Demands Foreign CCTV Firms to Submit Source Code?

“The attacks have been underway since at least 2021, with evidence to suggest that some of this activity may even date as far back as 2020. Virtually all of the organizations targeted were telecoms operators, with the addition of a services company that serves the telecoms sector and a university in another Asian country.” reads the report published by Broadcom Symantec Threat Hunter Team.

The experts have found evidence indicating that the cluster activity may have started in 2020.

In a recent espionage operation, the attackers used custom malware linked to various Chinese APT groups. Some of the malware used by the attackers are:

Coolclient: A backdoor associated with the Fireant group (also known as Mustang Panda or Earth Preta) hasA backdoor was found to be associated with the Fireant group, also known as Mustang Panda or Earth Preta. It records keystrokes, handles files, and communicates with a C2 server. This campaign utilized a disguised version of VLC Media Player (named googleupdate.exe) to load a Coolclient loader. The loader is responsible for decrypting and executing the payloads.

Quickheal: There is a backdoor linked to the Needleminer group. It is also known as RedFoxtrot or Nomad Panda. The attackers used a 32-bit DLL variant in recent attacks. It communicates with a fixed C&C server using a custom protocol that imitates SSL traffic.

Rainyday: A recent espionage campaign used a backdoor connected to the Firefly group, also known as Naikon.

Other TTPs
Aside from the aforementioned custom backdoors, the attackers employed a diverse range of tactics, techniques, and procedures (TTPs):
Keylogging malware, possibly custom-developed
Port scanning: At least three distinct port-scanning tools were deployed
Credential theft through the dumping of registry hives
Responder: A publicly available tool that acts as a Link-Local Multicast Name Resolution (LLMNR) NetBIOS Name Service (NBT-NS) and multicast DNS (mDNS) poisoner
Enabling RDP

The cyber espionage group used custom backdoors and a variety of tactics and tools to attack their targets. They used keylogging malware, port scanning tools, credential theft, a tool called Responder, and enabled RDP.

“Tools used in this campaign have strong associations with multiple Chinese groups and at least three of the custom backdoors deployed are believed to be used exclusively by Chinese espionage actors.” concludes the report.” “The nature of the link between the actors involved in the current campaign remains unclear. Possibilities include, but are not limited to:

Attacks by multiple separate actors.
One actor using tools and/or personnel obtained or shared from other groups.
Multiple actors collaborating in a single campaign.

The ultimate motive of the intrusion campaign remains unclear.”

(Media Disclaimer: This report is based on research conducted internally and externally using different ways. The information provided is for reference only, and users are responsible for relying on it. Infosecbulletin is not liable for the accuracy or consequences of using this information by any means)

Check Also

Spain

All major mobile networks go down across Spain

A nationwide phone network has gone down in Spain, shortly after blackouts caused chaos and …

Leave a Reply

Your email address will not be published. Required fields are marked *