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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, they emit 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 to Sensitive Data
Indicators of Compromise
MD5
- 6410d5a54714bbee2d34c32082e6ecd2
- 679f8f09e36c8e01467d665b3cc125c2
- 60194970d3fca26d6d62ad4263a3ad62
- 05486b43318507e9b40079ccc015fe25
- d7a8d0ada2565dbc31293ce1d3a59470
- dcdb8927f6e675c229e9620c2b391b48
- 125c20de28795b115fc57f281612bb1c
SHA-256
- 3a810c8e25c4e2bee013eff6ff95fc378456abb435299da1faffe6ac12d0934a
- 2b73cf1162139d6cebbe64dece8976de44ab908cbb7185596ad9c6dd9903061a
- 99427242576075c6bfc1038c07587b07f69b0d85149fbf0091b9a582e68a9cf1
- 9314d40f064aed182d1b0910dcc17d215a7bcdfe7fa356202c0f84556fbce9f1
- 508e67f9f8ecec59538cd61fc6aaf0c25b4194d6dbd8b830f7b5bb2b8adf5ae9
- f1a83ca51de663f90eddcee2480847538f36d6151306d4c31f9d5e8baf709a9b
- b9dd5b5112232c3266b326271d24c2d8af866a386c34fb2d4cd3c414f995b587
SHA-1
- e98ee40e25c1a52adaea2147bab0051bd510177a
- 936b70906d011f4888e249a52f0544e8836f9a70
- 561eddc46818941773b0ec6fd1694da5031eb467
- 81b3aca7116005ecb58c0fcdf21365c1e4f4ba98
- a7bc1a8f5975a99949e8fa075221183d464c0714
- a8a877dbd644e8efaaa6cec73597c60aa725fda9
- 31f3d75c81011a61be69464920fefe97469b2b6e
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 promptly. Using multi-layered protection is necessary to secure vulnerable assets.