Worm

Worm.Small (file analysis)

Malware Removal

The Worm.Small 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.

GridinSoft Anti-Malware

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.
6-day free trial available.

What Worm.Small virus can do?

  • Reads data out of its own binary image
  • The binary likely contains encrypted or compressed data.
  • The executable is compressed using UPX
  • Installs itself for autorun at Windows startup
  • Network activity detected but not expressed in API logs
  • Creates a slightly modified copy of itself
  • Anomalous binary characteristics

Related domains:

z.whorecord.xyz
a.tomx.xyz

How to determine Worm.Small?


File Info:

crc32: 36707D26
md5: 658d897a9c6f1e2139b829675822e52a
name: 658D897A9C6F1E2139B829675822E52A.mlw
sha1: 5459826a6124da6c14fd85834cbd9e34c50cee38
sha256: 3c38ef3a19968bdc2d903f5b6a265028072053cf2e53b0de39b42ca4284b28d4
sha512: 2086f8fc53496f5c4b98eb62fbf485ca739fa83ec2ca18ff4f5f8512e0949673160019b9495b0eed56e30a47368781fa4ed814a24233932f1980e533bdf19f31
ssdeep: 1536:Q4QQ6NSyM61l19piO+LV8YEoI/EU9RUe4m4oW+6qN4Rw:Q4X6NSyfnpijeYEoIcq4R4v
type: PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed

Version Info:

0: [No Data]

Worm.Small also known as:

BkavW32.AIDetectVM.malware1
Elasticmalicious (high confidence)
MicroWorld-eScanGeneric.Malware.GJ!hid!!dld!!prn!g.4A2FD3CB
FireEyeGeneric.mg.658d897a9c6f1e21
CAT-QuickHealWorm.Picsys.CC1
McAfeeW32/Picsys.worm.b
CylanceUnsafe
VIPREWorm.Win32.Yoof.e (v)
SangforMalware
K7AntiVirusTrojan ( 00568e341 )
BitDefenderGeneric.Malware.GJ!hid!!dld!!prn!g.4A2FD3CB
K7GWTrojan ( 00568e341 )
Cybereasonmalicious.a9c6f1
TrendMicroBKDR_SIXER131.A
BaiduWin32.Worm.Picsys.a
CyrenW32/Trojan.DGCA-1506
SymantecW32.HLLW.Yoof
TotalDefenseWin32/Tnega.DSQLOTD
APEXMalicious
AvastWin32:Picsys-B [Wrm]
ClamAVWin.Worm.Picsys-6804101-0
KasperskyP2P-Worm.Win32.Picsys.b
NANO-AntivirusTrojan.Win32.Picsys.deaxpd
Ad-AwareGeneric.Malware.GJ!hid!!dld!!prn!g.4A2FD3CB
SophosW32/PicSys-B
ComodoWorm.Win32.Picsys.BK@565vf1
F-SecureDropper.DR/Delphi.Gen
DrWebBackDoor.Siex.131
ZillyaWorm.Picsys.Win32.3
InvinceaML/PE-A + W32/PicSys-B
McAfee-GW-EditionBehavesLike.Win32.Generic.lc
EmsisoftGeneric.Malware.GJ!hid!!dld!!prn!g.4A2FD3CB (B)
IkarusWorm.Win32.Yoof
JiangminI-Worm/P2P.Picsys
MaxSecureTrojan.Malware.300983.susgen
AviraDR/Delphi.Gen
MAXmalware (ai score=82)
Antiy-AVLWorm[P2P]/Win32.Sytro.j
MicrosoftWorm:Win32/Yoof.E
ArcabitGeneric.Malware.GJ!hid!!dld!!prn!g.4A2FD3CB
SUPERAntiSpywareTrojan.Agent/Gen-SpyBot
ZoneAlarmP2P-Worm.Win32.Picsys.b
GDataGeneric.Malware.GJ!hid!!dld!!prn!g.4A2FD3CB
CynetMalicious (score: 100)
AhnLab-V3Worm/Win32.Picsys.C116429
Acronissuspicious
BitDefenderThetaAI:Packer.B927EAE619
ALYacGeneric.Malware.GJ!hid!!dld!!prn!g.4A2FD3CB
TACHYONWorm/W32.Picsys
VBA32Worm.Picsys
MalwarebytesWorm.Small
ESET-NOD32a variant of Win32/Picsys.D
TrendMicro-HouseCallBKDR_SIXER131.A
YandexTrojan.GenAsa!50WnngUFEVU
SentinelOneStatic AI – Malicious PE
eGambitUnsafe.AI_Score_99%
FortinetW32/Generic.AC.2C8E!tr
AVGWin32:Picsys-B [Wrm]
CrowdStrikewin/malicious_confidence_100% (D)
Qihoo-360HEUR/QVM19.1.5625.Malware.Gen

How to remove Worm.Small?

Worm.Small 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.

Leave a Comment