We highlighted in our quarterly threat roundup how various ransomware variants and other similar threats like CryptoLocker that now perform additional routines such as using different languages in their warning and stealing funds from cryptocurrency wallets. The addition of mobile ransomware highlights how these threats are continuously improved over time. We recently encountered another variant that used the…
Read MoreMark Joseph Manahan (Threat Response Engineer)
Threat Response Engineer
VOBFUS malware is known for its polymorphic abilities, which allow for easy generation of new variants. We recently came across one variant that replaces these abilities for one never seen in VOBFUS malware before—the ability to “speak” several languages. Infection in Different Languages Just like other VOBFUS variants, this new variant, detected as WORM_VOBFUS.JDN, propagates by…
Read MoreOut with the old, in with the new? When it comes to cybercrime, that’s rarely the case. We often seen old malware get upgrades with new techniques, payloads, and even targets. This is certainly the case for an old Java remote access Trojan (RAT) detected as JAVA_OZNEB.B. Users may encounter this threat as an attachment…
Read MoreThe ZeuS/ZBOT malware family is probably one of the most well-known malware families today . It is normally known for stealing credentials associated with online banking accounts. However, ZBOT is no one-trick pony. Some ZBOT variants perform other routines like downloading or dropping other threats like ransomware. We recently came across one variant detected as TROJ_ZCLICK.A,…
Read MoreCybercriminals can certainly be resourceful when it comes to avoiding detection. We have seen many instances wherein malware came equipped with improved evasion techniques, such as preventing execution of analysis tools, hiding from debuggers, blending in with normal network traffic, along with various JavaScript techniques. Security researchers have now come across malware that uses a…
Read More