Trojan.Downloader.JRZS malicious file

The Trojan.Downloader.JRZS is considered dangerous by lots of security experts. When this infection is active, you may notice unwanted processes in Task Manager list. In this case, it is adviced to scan your computer with GridinSoft Anti-Malware.

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What Trojan.Downloader.JRZS virus can do?

• Behavioural detection: Executable code extraction – unpacking
• Yara rule detections observed from a process memory dump/dropped files/CAPE
• Creates RWX memory
• Possible date expiration check, exits too soon after checking local time
• Dynamic (imported) function loading detected
• Enumerates running processes
• Reads data out of its own binary image
• CAPE extracted potentially suspicious content
• Unconventionial language used in binary resources: Chinese (Simplified)
• The binary contains an unknown PE section name indicative of packing
• Authenticode signature is invalid
• Behavioural detection: Injection (Process Hollowing)
• Executed a process and injected code into it, probably while unpacking
• Behavioural detection: Injection (inter-process)

How to determine Trojan.Downloader.JRZS?

File Info:
name: C407AD473F83C621E4EF.mlw
path: /opt/CAPEv2/storage/binaries/ac4038b89cee3e3c5ee2e117a9d3c5c27190a05811eb02d088a8a876fb0becb6
crc32: C761B654
md5: c407ad473f83c621e4ef4cf44b4d3aec
sha1: 2daefd13631ce5d8ed570ee2f0d584e5d8d2b3be
sha256: ac4038b89cee3e3c5ee2e117a9d3c5c27190a05811eb02d088a8a876fb0becb6
sha512: 80bbf8a59ca6f6bfb4cc494f4caccfdd458f9aed059455ecf032444c5597035573a9ff9d2f834f0b3fbd370ebed3b84a798c6b27272209c07997f67b8ba1f91a
ssdeep: 1536:OUHuExVqcLUF3oAzBT2fMlOQEKpbfkMDugeV:OUHuEx9s4AzBT2fMlOQ3tDLE
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T1B063E0DDAD540222D589C2305A5B9B7129F5F5B8FB07C3CB7BA6C82E6875A8C912320D
sha3_384: 74b3e4baeb15243a29dbd44836470062dc76700f1e3bdf8262bf5990b531563ede03ab26f0ac58020e8d3e713cca3952
ep_bytes: 558bec6aff68d026400068a21d400064
timestamp: 2015-07-07 18:27:33

Version Info:
0: [No Data]

Trojan.Downloader.JRZS also known as:

How to remove Trojan.Downloader.JRZS?

• Download and install GridinSoft Anti-Malware.
• Open GridinSoft Anti-Malware and perform a “Standard scan“.
• “Move to quarantine” all items.
• Open “Tools” tab – Press “Reset Browser Settings“.
• Select proper browser and options – Click “Reset”.
• Restart your computer.