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Severity
Medium
Analysis Summary
GCleaner is a type of malware that disguises itself as a legitimate software program called “GCleaner” or “G-Cleaner.” It is typically spread through malicious email attachments or fake software downloads. Once installed on a computer, GCleaner can gather personal information, display unwanted ads, and cause other malicious activity. To avoid the detection by Anti-virus they changed their technique by distributing these malware through crack websites. When these cracks are executed, it emits various payloads. Depending on the country it emits various malware which includes STOP/DJVU ransomware, SmokeLoader, Redline, Amadey, Flicker, and Racoon Stealer. The countries that were mostly targeted were the US, EU, and CA.
It is important to keep your anti-virus software updated and to be cautious when downloading and installing programs, particularly from untrusted sources.
Impact
- Information Theft
- Credential Theft
- Exposure of Sensitive Data
Indicators of Compromise
MD5
- 706d7a0bac28d0e11d02dd24ee0de1b1
- bd242753f3fac2bcbdcbb32624c09e15
- b908d00d8249b84d5a48d7f19d63c2f8
- 5372b5d1904508cc2b04786d95e083e0
- 8a17a61f17074e55b9439682bcd929db
SHA-256
- 5f9688da0644a0f068030a76b446d21ac08ffcc291018473a85fb29524270f2c
- 9f456e86e46137ce202ab0a7b462591029e71aa2f207e139aed9d59ccbb46445
- 3e3f7bd7b8aacbb67c7a64dc05449f4ebc4da4d9152ac81d21a93fd3d23335e9
- 0435e067dd1d3d89fe355c42ec831b005abaa3db748e2ed460aec3a491cfe68a
- 676e33e2ec826ee93c46f914d2ca2f9da20c938c3a284b2ee72707ac3a14516b
SHA-1
- 4ae9e0f838ad9b19cdda705f6f4b5533fa5f84de
- a7b06e6653fd531b0b67dc9071aa93ee2f3f4173
- 84670dee8d5478f6f815f46e1272866fce15c749
- e450b0d705e1fb73f0138bf07c2bf031a47d2ebf
- 2072a227eb81653df0fad6c40821da25879498df
Remediation
- Block all threat indicators at your respective controls.
- Search for Indicators of compromise (IOCs) in your environment utilizing your respective security controls
- Patch and upgrade any platforms and software timely and make it into a standard security policy. Prioritize patching known exploited vulnerabilities and zero-days.
- Enable antivirus and anti-malware software and update signature definitions in a timely manner. Using multi-layered protection is necessary to secure vulnerable assets