About “Trojan:Win32/Zbot” infection

The Trojan:Win32/Zbot 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.

What Trojan:Win32/Zbot virus can do?

• Behavioural detection: Executable code extraction – unpacking
• SetUnhandledExceptionFilter detected (possible anti-debug)
• Yara rule detections observed from a process memory dump/dropped files/CAPE
• Creates RWX memory
• Anomalous file deletion behavior detected (10+)
• Dynamic (imported) function loading detected
• Performs HTTP requests potentially not found in PCAP.
• Reads data out of its own binary image
• Drops a binary and executes it
• The binary contains an unknown PE section name indicative of packing
• The binary likely contains encrypted or compressed data.
• The executable is compressed using UPX
• 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)
• Created a process from a suspicious location
• Attempts to modify proxy settings

How to determine Trojan:Win32/Zbot?

File Info:
name: E5A2577E9FA478EB820D.mlwpath: /opt/CAPEv2/storage/binaries/05afac4e0aeeb2f0013684f92bb34bfd8368284a4e04510feaa2ce3e5712e9f6crc32: C42506FCmd5: e5a2577e9fa478eb820de2b813a17250sha1: bd6e0a5efc9d211d281f295419c2c77986e1a1ebsha256: 05afac4e0aeeb2f0013684f92bb34bfd8368284a4e04510feaa2ce3e5712e9f6sha512: 87895c937244af7057cf6c23a02fec7c923557866c7cd2908ba46738772ac0825ae97fdf6c7eedd29dd724da7d45eaaae11e6784d21d3d7e3f1d254bbc360602ssdeep: 768:+vLKS9wQBRsIWpsuCT3Lxn0sL3lRIPwsPnoW9BMNhFT6c1T5B6706BqtR:+vOYwQBLWhChd7Swsfd7MNL6aTm4tRtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1F953ADC2F6D58C28F446CD3149CA46E37E2EAD2C0B9D425628D4F6AFDC7D211970DEA8sha3_384: 997367a54662e543632f651420b6cc8149380da026758982b09c587b6501462cb89f7b8685b65cf3a8aa62a186df48d4ep_bytes: 60be006040008dbe00b0ffff5783cdfftimestamp: 2009-06-20 17:58:50
Version Info:
Translation: 0x0409 0x04b0ProductName: intFileVersion: 2.564.0064ProductVersion: 2.564.0064InternalName: topsOriginalFilename: tops.exe

Trojan:Win32/Zbot also known as:

How to remove Trojan:Win32/Zbot?

• 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.