Categories: Malware

Symmi.27101 removal

The Symmi.27101 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 Symmi.27101 virus can do?

  • Behavioural detection: Executable code extraction – unpacking
  • SetUnhandledExceptionFilter detected (possible anti-debug)
  • 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
  • Anomalous file deletion behavior detected (10+)
  • A process attempted to delay the analysis task.
  • Dynamic (imported) function loading detected
  • Enumerates running processes
  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option
  • A process created a hidden window
  • CAPE extracted potentially suspicious content
  • Unconventionial language used in binary resources: Russian
  • The binary contains an unknown PE section name indicative of packing
  • The executable is compressed using UPX
  • Authenticode signature is invalid
  • Deletes its original binary from disk
  • Checks for the presence of known windows from debuggers and forensic tools
  • Likely virus infection of existing system binary
  • Attempts to identify installed analysis tools by a known file location
  • Checks the presence of disk drives in the registry, possibly for anti-virtualization
  • Creates a copy of itself
  • Anomalous binary characteristics

How to determine Symmi.27101?


File Info:

name: 809A113E954B23C95B81.mlwpath: /opt/CAPEv2/storage/binaries/49ff4f09473bd192ed2865bf938c77a021a03d7c80dc9a65b75f5b96f493f452crc32: 9CAE2CBDmd5: 809a113e954b23c95b81a20be1538fafsha1: 82e48c3af15d06cd56c339667072c7b34e1808c2sha256: 49ff4f09473bd192ed2865bf938c77a021a03d7c80dc9a65b75f5b96f493f452sha512: 2cfe6cff9cba0906f73928b1a6d670cce016a44c319feddd9d9d1e0eefd15acf57f77e903f087a816db70155a78151b07c9c5f65e52f98da89c83c72fe9a33b2ssdeep: 6144:PFSLWPQDdc8idypFkZwSSGiG+MPZGWBX69H5B08V1QU:PyL+NBGWh69Hxtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1E8B412256AB0C361C0E14436B5E9E05A712DB91C5FCC592FB38027D9B4325FC79EBA2Esha3_384: 0b83256ac51c7f83428bd66a3db64c3472f94cd494b7c8458287b8b5fd481c4b57a541a03fc2ce5b0323e6435fe1fe99ep_bytes: 90558bec81c47cfdffff4f46b8712540timestamp: 2009-01-02 03:45:48

Version Info:

CompanyName: Eper1 SoftwareFileDescription: Eper1 Internet BrowserFileVersion: 1190InternalName: Eper1LegalCopyright: Copyright © Eper1 Software 1995-2011OriginalFilename: Eper1.exeProductName: Eper1 Internet BrowserProductVersion: 11.01Translation: 0x0409 0x04b0

Symmi.27101 also known as:

Bkav W32.MosquitoQKK.Fam.Trojan
Lionic Trojan.Win32.Generic.4!c
Elastic malicious (high confidence)
DrWeb Trojan.Packed.21467
MicroWorld-eScan Gen:Variant.Symmi.27101
FireEye Generic.mg.809a113e954b23c9
ALYac Gen:Variant.Symmi.27101
Cylance Unsafe
Zillya Trojan.Kryptik.Win32.881670
Sangfor Suspicious.Win32.Save.a
K7AntiVirus Trojan ( 004bcce41 )
Alibaba Exploit:Win32/ShellCode.ab88e3c3
K7GW Trojan ( 004bcce41 )
Cybereason malicious.e954b2
BitDefenderTheta Gen:NN.ZexaF.34212.Fm1@aKWPvMbc
VirIT Trojan.Win32.Packed.BFTR
Symantec W32.IRCBot.NG
ESET-NOD32 a variant of Win32/GenKryptik.BVLJ
TrendMicro-HouseCall BKDR_QAKBOT.SMG
Paloalto generic.ml
ClamAV Win.Spyware.Zbot-1279
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Gen:Variant.Symmi.27101
NANO-Antivirus Trojan.Win32.Pincav.imggm
SUPERAntiSpyware Trojan.Agent/Gen-Pervaser
Avast Win32:Kryptik-AHL [Trj]
Tencent Win32.Trojan.Generic.Dyzy
Ad-Aware Gen:Variant.Symmi.27101
Sophos Mal/Generic-R + Mal/FakeAV-BW
Comodo Packed.Win32.MUPX.Gen@24tbus
VIPRE VirTool.Win32.Obfuscator.da!j (v)
TrendMicro BKDR_QAKBOT.SMG
McAfee-GW-Edition BehavesLike.Win32.Downloader.gz
Emsisoft Gen:Variant.Symmi.27101 (B)
Ikarus Trojan.Win32.Spyeye
GData Gen:Variant.Symmi.27101
Jiangmin Trojan/Generic.cwgz
Webroot W32.Malware.Gen
Avira TR/Crypt.ZPACK.Gen8
Antiy-AVL Trojan[Packed]/Win32.Krap
Arcabit Trojan.Symmi.D69DD
ZoneAlarm HEUR:Trojan.Win32.Generic
Microsoft Worm:Win32/Slenfbot.gen!D
Cynet Malicious (score: 100)
AhnLab-V3 Trojan/Win32.Renos.R3026
Acronis suspicious
McAfee PWS-Spyeye.fe
MAX malware (ai score=100)
VBA32 Trojan.Zeus.EA.0999
Malwarebytes Malware.AI.1553884152
APEX Malicious
Rising Exploit.ShellCode!8.2A (CLOUD)
Yandex Trojan.GenAsa!kUxYJGN2wsY
SentinelOne Static AI – Malicious PE
MaxSecure Trojan.Malware.1963635.susgen
Fortinet W32/Kolab.UWF!worm.im
AVG Win32:Kryptik-AHL [Trj]
Panda Bck/Qbot.AO
CrowdStrike win/malicious_confidence_100% (D)

How to remove Symmi.27101?

  • 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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