TrojanDownloader:Win32/Kuluoz.A removal guide

The TrojanDownloader:Win32/Kuluoz.A 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 TrojanDownloader:Win32/Kuluoz.A 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
• A process attempted to delay the analysis task.
• Dynamic (imported) function loading detected
• Performs HTTP requests potentially not found in PCAP.
• HTTPS urls from behavior.
• CAPE extracted potentially suspicious content
• 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
• Deletes its original binary from disk
• Behavioural detection: Injection (inter-process)
• Attempts to modify proxy settings

How to determine TrojanDownloader:Win32/Kuluoz.A?

File Info:
name: 2E85AA19171DF7318AF6.mlwpath: /opt/CAPEv2/storage/binaries/bf9b6b5abdd3570cce9284eab3a716b4df856cdc630ea71cdedeb0739502afd5crc32: 3F212371md5: 2e85aa19171df7318af6779df94fee95sha1: f3c4b1f864a401cae8c96e16e79ecd495bf2596fsha256: bf9b6b5abdd3570cce9284eab3a716b4df856cdc630ea71cdedeb0739502afd5sha512: fb356d16d0efb90e41426fbea64f68d14a9fa742c3723661c29cc254d9f5124cd6cfce945e7a2640c5f87100208dfc4cff3658de922abafe1f4c2fa417c20465ssdeep: 768:EBwTmqYPiPcOaNOHd123Upg0IqSzJpWHC8uu/SoZ3Spr:EBwtkZ3D0IqSzJpSvujrtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T107F2AE13FA229D98F9BE1378247F1EDD8810B835C56C465D22A7A9C8E9F7D9D20B3103sha3_384: 2bec9a21a083750428228793dbae773a1763ce18248e3f5512d24985aea5559ce0d39c524e6cfe2eae8ee2b2a95e37ecep_bytes: 60be00e040008dbe0030ffff5783cdfftimestamp: 2012-05-16 00:31:38
Version Info:
Build: FileVersion: FileDescription: ololoSupport: LegalCopyright: Copyright © 2007 GCS Software Pty LtdComments: Company Name: Software ObjectivesCompany Address: Made in ChinaWebsite: www.softwareobjectives.com.auOriginal Filename: koko.exeTranslation: 0x0409 0x04b0

TrojanDownloader:Win32/Kuluoz.A also known as:

How to remove TrojanDownloader:Win32/Kuluoz.A?

• 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.