Categories: Malware

W32/Xolxo-F removal

The W32/Xolxo-F 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 W32/Xolxo-F virus can do?

  • A file was accessed within the Public folder.
  • Sample contains Overlay data
  • Reads data out of its own binary image
  • The binary contains an unknown PE section name indicative of packing
  • The executable is compressed using UPX
  • Authenticode signature is invalid
  • Checks for the presence of known devices from debuggers and forensic tools
  • Checks for the presence of known devices from debuggers and forensic tools
  • Yara rule detections observed from a process memory dump/dropped files/CAPE

How to determine W32/Xolxo-F?


File Info:

name: 3D30777690EC8BD179B1.mlwpath: /opt/CAPEv2/storage/binaries/5144b4905b0a8cda70db9a3c4a80a8691597761bff176e7a2dbed8e42f5984b8crc32: F58CFDB8md5: 3d30777690ec8bd179b177ac15e30345sha1: 3d359fdc4d6f5c89af5168c6c8e721172175fc0csha256: 5144b4905b0a8cda70db9a3c4a80a8691597761bff176e7a2dbed8e42f5984b8sha512: a20f9c95a425290cd61e8c4caf217242ded1631efe2c12a95c0b7db16444cf35f6af26bd5d6d56fff22cab42c3052d965e414f4aa419be4b6a3e94ef35caf623ssdeep: 98304:XKU5C/+JOrRYI9urj6KvySznefhv3zV6/J6sV2VW:XKU5CQWRY2/th6/J6sV2VWtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1FF56BF16A6B881F5C073C179C9D39B87FA7134458F349ADF029A922D1F336E19A3E361sha3_384: 03fdaea2e8101207e9f376b8fac122ca4cab3132a0347b6ca51bb3bae70bf839318fdbb5a9560d5ac48da73c4de0d6e6ep_bytes: 558bec83c4f0b838464000e874e2fffftimestamp: 1992-06-19 22:22:17

Version Info:

0: [No Data]

W32/Xolxo-F also known as:

Bkav W32.AIDetectMalware
Lionic Virus.Win32.Lamer.kYNN
Elastic malicious (high confidence)
MicroWorld-eScan Trojan.Agent.EICV
CAT-QuickHeal Worm.DelfPMF.S30896276
Skyhigh BehavesLike.Win32.Generic.tc
McAfee W32/HLLP.11042.gen
Malwarebytes Generic.Trojan.Delf.DDS
Zillya Worm.Delf.Win32.3450
Sangfor Suspicious.Win32.Save.ins
K7AntiVirus Trojan ( 0053c5661 )
Alibaba Worm:Win32/Xolxo.45b
K7GW Trojan ( 0053c5661 )
Cybereason malicious.c4d6f5
Arcabit Trojan.Agent.EICV
Baidu Win32.Virus.Lamer.f
Symantec W32.SillyP2P
tehtris Generic.Malware
ESET-NOD32 Win32/Delf.NAY
Cynet Malicious (score: 100)
APEX Malicious
ClamAV Win.Virus.Wapomi-9623880-0
Kaspersky P2P-Worm.Win32.Delf.aj
BitDefender Trojan.Agent.EICV
NANO-Antivirus Trojan.Win32.Delf.oxkq
Avast Win32:Delf-SVI [Trj]
Tencent Virus.Win32.Lamer.fh
Emsisoft Trojan.Agent.EICV (B)
F-Secure Trojan.TR/Dropper.Gen
DrWeb Win32.HLLW.Kazaa.924
VIPRE Trojan.Agent.EICV
TrendMicro TROJ_AGENT_005911.TOMB
Sophos W32/Xolxo-F
Ikarus Trojan.Agent
Jiangmin Worm/Delf.vm
Webroot W32.Worm.Gen
Varist W32/Delf.QB.gen!Eldorado
Avira TR/Dropper.Gen
Antiy-AVL Virus/Win32.BagarBubba.a
Xcitium TrojWare.Win32.Pincav.AV@2rw0ny
Microsoft Worm:Win32/Xolxo.A
ZoneAlarm P2P-Worm.Win32.Delf.aj
GData Trojan.Agent.EICV
Google Detected
AhnLab-V3 Worm/Win32.Delf.R119214
Acronis suspicious
BitDefenderTheta Gen:NN.ZelphiF.36680.@pZ@auciUnn
VBA32 Worm.Delf
Cylance unsafe
Panda Trj/Genetic.gen
TrendMicro-HouseCall TROJ_AGENT_005911.TOMB
Rising Worm.P2p.Win32.Delf.bn (CLASSIC)
Yandex Trojan.GenAsa!HYSjiRN/8Mk
SentinelOne Static AI – Malicious PE
MaxSecure Virus.W32.Lamer.FG
Fortinet W32/Aple.A
AVG Win32:Delf-SVI [Trj]
DeepInstinct MALICIOUS
CrowdStrike win/malicious_confidence_100% (W)

How to remove W32/Xolxo-F?

  • 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.
Paul Valéry

I'm a cyber security analyst and data science expert with 5+ years of experience with security software contractors.

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