Trojan

TrojanDownloader:Win32/Small!K (file analysis)

Malware Removal

The TrojanDownloader:Win32/Small!K 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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Gridinsoft Anti-Malware

Removing PC viruses manually may take hours and may damage your PC in the process. We recommend using GridinSoft Anti-Malware for virus removal. Allows to complete scan and cure your PC during the trial period.
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What TrojanDownloader:Win32/Small!K virus can do?

  • Attempts to connect to a dead IP:Port (2 unique times)
  • Expresses interest in specific running processes
  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option
  • Drops a binary and executes it
  • Performs some HTTP requests
  • Exhibits possible ransomware file modification behavior

Related domains:

w.x.baidu.com
1212.ip138.com
tj.ug118.club
scloud-dlsw.br.baidu.com
abc.gh2w.com
dl.wanchihuo.com

How to determine TrojanDownloader:Win32/Small!K?


File Info:

crc32: F403F10E
md5: 735c6f7a799a1580ba8b1639df664a38
name: 735C6F7A799A1580BA8B1639DF664A38.mlw
sha1: 937e04ccc565da34eff09bf70787ed984513ec4e
sha256: fa14715b5c05c80186d0e1fb6e78b4cef73b8a32a6f23f960ed7bc4ea164979a
sha512: a4c005b688ea59aabb098cb5c8ed54a8b237a1c6baf6f6bfd8ac1cccd97fd54614c15b036abcdde207192f31ab78f83940f5dab7e7ce4438f698581e8b0f1b61
ssdeep: 24576:kuT2ANgZ1w9Oid0Z7nLeTxQbAcgbeNNvoWmF8u:kuld3WhgyNNvoWEl
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

TrojanDownloader:Win32/Small!K also known as:

Elasticmalicious (high confidence)
DrWebTrojan.DownLoader23.53727
MicroWorld-eScanGen:Variant.Zusy.207467
FireEyeGeneric.mg.735c6f7a799a1580
CAT-QuickHealTrojandownloader.Generic
Qihoo-360Win32/Trojan.307
ALYacGen:Variant.Zusy.207467
CylanceUnsafe
VIPRETrojan.Win32.Generic!BT
SangforTrojan.Win32.Save.a
K7AntiVirusRiskware ( 0040eff71 )
AlibabaTrojanDownloader:Win32/Softcnapp.6d92d141
K7GWRiskware ( 0040eff71 )
Cybereasonmalicious.a799a1
BitDefenderThetaGen:NN.ZexaF.34804.9mX@auANdTj
CyrenW32/S-c90b37b8!Eldorado
SymantecML.Attribute.HighConfidence
TotalDefenseWin32/Oflwr.A!crypt
APEXMalicious
AvastWin32:CoinminerX-gen [Trj]
KasperskyHEUR:Trojan-Downloader.Win32.Generic
BitDefenderGen:Variant.Zusy.207467
NANO-AntivirusTrojan.Win32.Small.elkutz
Paloaltogeneric.ml
RisingTrojan.Kryptik!1.B3E8 (CLOUD)
Ad-AwareGen:Variant.Zusy.207467
EmsisoftGen:Variant.Zusy.207467 (B)
F-SecureHeuristic.HEUR/AGEN.1120043
ZillyaBackdoor.Klon.Win32.3159
TrendMicroTROJ_GEN.R007C0DB321
McAfee-GW-EditionBehavesLike.Win32.Dropper.dh
SophosBlackMoon Packed (PUA)
IkarusPUA.BlackMoon
JiangminTrojan/PSW.Bjlog.flf
AviraHEUR/AGEN.1120043
MAXmalware (ai score=83)
Antiy-AVLTrojan[Downloader]/Win32.AGeneric
MicrosoftTrojanDownloader:Win32/Small.gen!K
GridinsoftTrojan.Win32.Downloader.oa
ArcabitTrojan.Zusy.D32A6B
AegisLabTrojan.Win32.Malicious.4!c
ZoneAlarmHEUR:Trojan-Downloader.Win32.Generic
GDataWin32.Trojan.Agent.WP
CynetMalicious (score: 100)
AhnLab-V3Malware/Win32.Generic.C1773008
Acronissuspicious
McAfeeGenericRXBE-DZ!735C6F7A799A
VBA32BScope.Trojan.Agent
MalwarebytesMalware.AI.4220488967
ESET-NOD32a variant of Win32/Packed.BlackMoon.A potentially unwanted
TrendMicro-HouseCallTROJ_GEN.R007C0DB321
TencentMalware.Win32.Gencirc.10b07fd9
YandexTrojan.GenAsa!rtZbtZZHxh4
SentinelOneStatic AI – Malicious PE – Spyware
eGambitUnsafe.AI_Score_99%
FortinetW32/GenKryptik.ESFJ!tr
AVGWin32:CoinminerX-gen [Trj]
PandaTrj/Genetic.gen
CrowdStrikewin/malicious_confidence_90% (D)

How to remove TrojanDownloader:Win32/Small!K?

TrojanDownloader:Win32/Small!K 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.

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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