SolarWinds-linked hacking group SilverFish abuses enterprise victims for sandbox tests

Cyberattackers involved in worldwide hacking campaigns are using the compromised systems of high-profile victims as playgrounds to test out malicious tool detection rates. On Thursday, Swiss cybersecurity firm Prodaft said that SilverFish (.PDF), an “extremely skilled” threat group, has been Read More …

China-linked TA428 Continues to Target Russia and Mongolia IT Companies

Recorded Future’s Insikt Group recently identified renewed activity attributed to the suspected Chinese threat activity group TA428. The identified activity overlaps with a TA428 campaign previously reported by Proofpoint as “Operation LagTime IT”, which targeted Russian and East Asian government Read More …

Hackers are targeting telecoms companies to steal 5G secrets

A cyber-espionage campaign is targeting telecoms companies around the world with attacks using malicious downloads in an effort to steal sensitive data – including information about 5G technology – from compromised victims. Uncovered by cybersecurity researchers at McAfee, the campaign Read More …

COVID-19: Examining the threat landscape a year later

A year ago — everything changed. In an effort to stem the tide of a rapidly spreading pandemic, the world shut down. Shops were forced to shut their doors, and whole countries were placed on stringent lockdowns. Schools were closed Read More …

Hafnium’s China Chopper: a ‘slick’ and tiny web shell for creating server backdoors

Researchers have provided insight into China Chopper, a web shell used by the state-sponsored Hafnium hacking group. Hafnium is a group of cyberattackers originating from China. The collective recently came into the spotlight due to Microsoft linking them to recent Read More …

Microsoft Exchange Servers Face APT Attack Tsunami

Recently patched Microsoft Exchange vulnerabilities are under fire from at least 10 different advanced persistent threat (APT) groups, all bent on compromising email servers around the world. Overall exploitation activity is snowballing, according to researchers. Microsoft said in early March Read More …

Supernova malware clues link Chinese threat group Spiral to SolarWinds server hacks

A possible link to China has been noted by researchers examining the exploit of SolarWinds servers to deploy malware. On Monday, Secureworks’ counter threat unit (CTU) said that during late 2020, a compromised Internet-facing SolarWinds server was used as a Read More …

New Sunshuttle Second-Stage Backdoor Uncovered Targeting U.S.-Based Entity; Possible Connection to UNC2452

Mandiant Threat Intelligence discovered a new backdoor uploaded by a U.S.-based entity to a public malware repository in August 2020 that we have named SUNSHUTTLE. SUNSHUTTLE is written in GO, and reads an embedded or local configuration file, communicates with Read More …

Lazarus targets defense industry with ThreatNeedle

We named Lazarus the most active group of 2020. We’ve observed numerous activities by this notorious APT group targeting various industries. The group has changed target depending on the primary objective. Google TAG has recently published a post about a Read More …