Malware

What is “Downloader.Win32.Agent.keif”?

Malware Removal

The Downloader.Win32.Agent.keif 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 Downloader.Win32.Agent.keif virus can do?

  • Sample contains Overlay data
  • Presents an Authenticode digital signature
  • Performs HTTP requests potentially not found in PCAP.
  • Reads data out of its own binary image
  • The binary contains an unknown PE section name indicative of packing
  • The binary likely contains encrypted or compressed data.
  • Authenticode signature is invalid
  • Attempts to modify proxy settings
  • Touches a file containing cookies, possibly for information gathering
  • Anomalous binary characteristics
  • Yara rule detections observed from a process memory dump/dropped files/CAPE

How to determine Downloader.Win32.Agent.keif?



File Info:

name: D42D3DE767107750CEAE.mlw
path: /opt/CAPEv2/storage/binaries/96650121c087de784c3d5c10d9094d71c42ba1e9b8795cbe1f0da6b1d6f07f79
crc32: 6123DAD3
md5: d42d3de767107750ceaea713bbea8357
sha1: c0760e318f84fc7a4e22a9efad27c0d4c01a6634
sha256: 96650121c087de784c3d5c10d9094d71c42ba1e9b8795cbe1f0da6b1d6f07f79
sha512: 6574e355d84515132996222736f555a8476afb9dd4544d3a31ca2372785e83eaf0541418227f3f408e35a2506a93f15fee3f96260face094d6ee7aa1bc8e7f26
ssdeep: 6144:1017vY/DQ4pch1UXgHDt3JzLoTBRkIbLGU+EHZCUa7WIpZMxX:1Cw/DQqchWX2LoT3P9VZBa7dpZMxX
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T165B4171F97544332D16109375CDB8370AC2E6D603AE77CF62D892E0F8BB9682B53D692
sha3_384: 739b0cf02dd1a86a0e9fdaaaba001df8047491856b50dad88092f427ed4b0fd8a20dc9f45161c8ec9efe173a86973890
ep_bytes: 558bec83c4f0b8b8cb4400e89c98fbff
timestamp: 2017-11-27 10:16:46


Version Info:

CompanyName: TweakBit
FileDescription: PCRepairKit Setup
FileVersion: 1.8.3.2
InternalName: pc-repair-kit
LegalCopyright: Copyright © 2008-2017 Auslogics Labs Pty Ltd
LegalTrademarks: Copyright © 2008-2017 Auslogics Labs Pty Ltd
OriginalFilename: pcrepairkit_stub_installer.exe
ProductName: PCRepairKit
ProductVersion: 1.x
Comments: Part of TweakBit PC Repair Kit
Translation: 0x0409 0x04e4

Downloader.Win32.Agent.keif also known as:

BkavW32.Common.B0B4256C
McAfeeGenericRXSF-OQ!D42D3DE76710
MalwarebytesGeneric.Malware.AI.DDS
ZillyaDownloader.Agent.Win32.346893
SangforTrojan.Win32.Save.a
K7AntiVirusTrojan ( 005329171 )
K7GWTrojan ( 005329171 )
CrowdStrikewin/grayware_confidence_100% (D)
CyrenW32/Auslogics.D.gen!Eldorado
SymantecML.Attribute.HighConfidence
tehtrisGeneric.Malware
ESET-NOD32a variant of Win32/Auslogics.A potentially unwanted
APEXMalicious
CynetMalicious (score: 100)
Kasperskynot-a-virus:Downloader.Win32.Agent.keif
SUPERAntiSpywarePUP.TweakBit/Variant
AvastWin32:PUP-gen [PUP]
TencentMalware.Win32.Gencirc.10bdce93
EmsisoftApplication.Downloader (A)
F-SecurePotentialRisk.PUA/TweakBit.Gen7
DrWebProgram.Unwanted.2346
McAfee-GW-EditionGenericRXSF-OQ!D42D3DE76710
FireEyeGeneric.mg.d42d3de767107750
SophosTweak Bit FixMyPC (PUA)
GDataWin32.Application.Auslogics.C
JiangminDownloader.Agent.eoq
AviraPUA/TweakBit.Gen7
Antiy-AVLGrayWare/Win32.Auslogics.a
Kingsoftmalware.kb.a.997
XcitiumApplication.Win32.Auslogics.AB@80idad
ZoneAlarmnot-a-virus:Downloader.Win32.Agent.keif
MicrosoftPUA:Win32/Auslogics
GoogleDetected
AhnLab-V3PUP/Win32.Helper.R214644
VBA32BScope.Downloader.Agent
Cylanceunsafe
RisingPUF.Auslogics!1.AC47 (CLASSIC)
YandexTrojan.GenAsa!sc2SX+KfCU4
SentinelOneStatic AI – Malicious PE
MaxSecureTrojan.Malware.121218.susgen
FortinetW32/Auslogics.A
AVGWin32:PUP-gen [PUP]
Cybereasonmalicious.18f84f
DeepInstinctMALICIOUS

How to remove Downloader.Win32.Agent.keif?

Downloader.Win32.Agent.keif removal tool
  • 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.

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About the author

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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